A neoplasm that arises from SCHWANN CELLS of the cranial, peripheral, and autonomic nerves. Clinically, these tumors may present as a cranial neuropathy, abdominal or soft tissue mass, intracranial lesion, or with spinal cord compression. Histologically, these tumors are encapsulated, highly vascular, and composed of a homogenous pattern of biphasic fusiform-shaped cells that may have a palisaded appearance. (From DeVita Jr et al., Cancer: Principles and Practice of Oncology, 5th ed, pp964-5)
Adenocarcinoma of the common hepatic duct bifurcation. These tumors are generally small, sharply localized, and seldom metastasizing. G. Klatskin's original review of 13 cases was published in 1965. Once thought to be relatively uncommon, tumors of the bifurcation of the bile duct now appear to comprise more than one-half of all bile duct cancers. (From Holland et al., Cancer Medicine, 3d ed, p1457)
Neoplasms which arise from peripheral nerve tissue. This includes NEUROFIBROMAS; SCHWANNOMAS; GRANULAR CELL TUMORS; and malignant peripheral NERVE SHEATH NEOPLASMS. (From DeVita Jr et al., Cancer: Principles and Practice of Oncology, 5th ed, pp1750-1)
General disorders of the sclera or white of the eye. They may include anatomic, embryologic, degenerative, or pigmentation defects.
Neoplasms which arise from nerve sheaths formed by SCHWANN CELLS in the PERIPHERAL NERVOUS SYSTEM or by OLIGODENDROCYTES in the CENTRAL NERVOUS SYSTEM. Malignant peripheral nerve sheath tumors, NEUROFIBROMA, and NEURILEMMOMA are relatively common tumors in this category.
A moderately firm, benign, encapsulated tumor resulting from proliferation of SCHWANN CELLS and FIBROBLASTS that includes portions of nerve fibers. The tumors usually develop along peripheral or cranial nerves and are a central feature of NEUROFIBROMATOSIS 1, where they may occur intracranially or involve spinal roots. Pathologic features include fusiform enlargement of the involved nerve. Microscopic examination reveals a disorganized and loose cellular pattern with elongated nuclei intermixed with fibrous strands. (From Adams et al., Principles of Neurology, 6th ed, p1016)
Skin diseases affecting or involving the cutaneous blood vessels and generally manifested as inflammation, swelling, erythema, or necrosis in the affected area.
Symptoms of NAUSEA and VOMITING in pregnant women that usually occur in the morning during the first 2 to 3 months of PREGNANCY. Severe persistent vomiting during pregnancy is called HYPEREMESIS GRAVIDARUM.
Health professionals who practice medicine as members of a team with their supervising physicians. They deliver a broad range of medical and surgical services to diverse populations in rural and urban settings. Duties may include physical exams, diagnosis and treatment of disease, interpretation of tests, assist in surgery, and prescribe medications. (from http://www.aapa.orglabout-pas accessed 2114/2011)
Neuroglial cells of the peripheral nervous system which form the insulating myelin sheaths of peripheral axons.
Tumor suppressor genes located on the long arm of human chromosome 22. Mutation or loss of these genes causes NEUROFIBROMATOSIS 2.
Nurses who are specially trained to assume an expanded role in providing medical care under the supervision of a physician.
Libraries in which a major proportion of the resources are available in machine-readable format, rather than on paper or MICROFORM.
Collections of systematically acquired and organized information resources, and usually providing assistance to users. (ERIC Thesaurus, http://www.eric.ed.gov/ accessed 2/1/2008)
The use of automatic machines or processing devices in libraries. The automation may be applied to library administrative activities, office procedures, and delivery of library services to users.
A cylindrical column of tissue that lies within the vertebral canal. It is composed of WHITE MATTER and GRAY MATTER.
Disorders of the blood and blood forming tissues.
A benign SCHWANNOMA of the eighth cranial nerve (VESTIBULOCOCHLEAR NERVE), mostly arising from the vestibular branch (VESTIBULAR NERVE) during the fifth or sixth decade of life. Clinical manifestations include HEARING LOSS; HEADACHE; VERTIGO; TINNITUS; and FACIAL PAIN. Bilateral acoustic neuromas are associated with NEUROFIBROMATOSIS 2. (From Adams et al., Principles of Neurology, 6th ed, p673)
Benign and malignant neoplasms that arise from one or more of the twelve cranial nerves.
A hydrolase enzyme that converts L-asparagine and water to L-aspartate and NH3. EC 3.5.1.1.
Benign unilocular lytic areas in the proximal end of a long bone with well defined and narrow endosteal margins. The cysts contain fluid and the cyst walls may contain some giant cells. Bone cysts usually occur in males between the ages 3-15 years.
Fibrous blood-filled cyst in the bone. Although benign it can be destructive causing deformity and fractures.
The lipid-rich sheath surrounding AXONS in both the CENTRAL NERVOUS SYSTEMS and PERIPHERAL NERVOUS SYSTEM. The myelin sheath is an electrical insulator and allows faster and more energetically efficient conduction of impulses. The sheath is formed by the cell membranes of glial cells (SCHWANN CELLS in the peripheral and OLIGODENDROGLIA in the central nervous system). Deterioration of the sheath in DEMYELINATING DISEASES is a serious clinical problem.

Ethylnitrosourea-induced development of malignant schwannomas in the rat: two distinct loci on chromosome of 10 involved in tumor susceptibility and oncogenesis. (1/627)

Inbred rodent strains with differing sensitivity to experimental tumor induction provide model systems for the detection of genes that either are responsible for cancer predisposition or modify the process of carcinogenesis. Rats of the inbred BD strains differ in their susceptibility to the induction of neural tumors by N-ethyl-N-nitrosourea (EtNU). Newborn BDIX rats that are exposed to EtNU (80 microg/g body weight; injected s.c.) develop malignant schwannomas predominantly of the trigeminal nerves with an incidence >85%, whereas BDIV rats are entirely resistant. A T:A-->A:T transversion mutation at nucleotide 2012 of the neu (erbB-2) gene on chromosome 10, presumably the initial event in EtNU-induced schwannoma development, is later followed by loss of the wild-type neu allele. Genetic crosses between BDIX and BDIV rats served: (a) to investigate the inheritance of susceptibility; (b) to obtain animals informative for the mapping of losses of heterozygosity (LOH) in tumors with polymorphic simple sequence length polymorphisms (SSLPs); and (c) to localize genes associated with schwannoma susceptibility by linkage analysis with SSLPs. Schwannoma development was strongly suppressed in F1 animals (20% incidence). All of the F1 schwannomas displayed LOH on chromosome 10, with a consensus region on the telomeric tip encompassing D10Rat3, D10Mgh16 and D10Rat2 but excluding neu. A strong bias toward losing the BDIV alleles suggests the involvement of a BDIV-specific tumor suppressor gene(s). Targeted linkage analysis with chromosome 10 SSLPs in F2 intercross and backcross animals localized schwannoma susceptibility to a region around D10Wox23, 30 cM centromeric to the tip. Ninety-four % of F1 tumors exhibited additional LOH at this region. Two distinct loci on chromosome 10 may thus be connected with susceptibility to the induction and development of schwannomas in rats exposed to EtNU.  (+info)

Schwannoma with features mimicking neuroblastoma: report of two cases with immunohistochemical and ultrastructural findings. (2/627)

OBJECTIVE: A study of two cases of a rare variant of benign schwannoma showing areas mimicking neuroblastoma/peripheral primitive neuroectodermal tumour (PNET). METHODS: Sections of formalin fixed, paraffin embedded specimens were studied by tinctorial stains and immunohistochemistry, and the tissue retrieved from formalin was examined by electronmicroscopy in one case. RESULTS: The tumours were small and subcutaneous. Both showed features of benign schwannoma; one had a multinodular plexiform pattern. In addition, rosette-like structures consisting of collagenous cores surrounded by small round cells or slightly larger epithelioid cells were present. Tumour cells were positive for S100 protein, Leu7, and in one case GFAP, but were negative for neurofilament protein, synaptophysin, and MIC2. Type IV collagen surrounded individual cells. Electronmicroscopy in case 2 confirmed schwannian features (lamina, processes) and failed to show features of neuroblastoma (neuroendocrine granules). CONCLUSIONS: Benign schwannomas may contain rosette-like structures mimicking neuroblastoma/PNET. The techniques used confirmed schwannian differentiation only and eliminated neuroblastoma/PNET. These uncommon variants should be recognised by practising histopathologists to avoid erroneous diagnoses and inappropriate treatment.  (+info)

Schwann cell hyperplasia and tumors in transgenic mice expressing a naturally occurring mutant NF2 protein. (3/627)

Specific mutations in some tumor suppressor genes such as p53 can act in a dominant fashion. We tested whether this mechanism may also apply for the neurofibromatosis type-2 gene (NF2) which, when mutated, leads to schwannoma development. Transgenic mice were generated that express, in Schwann cells, mutant NF2 proteins prototypic of natural mutants observed in humans. Mice expressing a NF2 protein with an interstitial deletion in the amino-terminal domain showed high prevalence of Schwann cell-derived tumors and Schwann cell hyperplasia, whereas those expressing a carboxy-terminally truncated protein were normal. Our results indicate that a subset of mutant NF2 alleles observed in patients may encode products with dominant properties when overexpressed in specific cell lineages.  (+info)

Probability of bilateral disease in people presenting with a unilateral vestibular schwannoma. (4/627)

BACKGROUND: Some 4%-5% of those who develop vestibular schwannomas have neurofibromatosis type 2 (NF2). Although about 10% of these patients present initially with a unilateral vestibular schwannoma, the risk for a patient with a truly sporadic vestibular schwannoma developing contralateral disease is unknown. METHODS: A United Kingdom survey of 296 patients with NF2 was reviewed for laterality of vestibular schwannoma at presentation and the presence of other NF2 related features. The time to presentation of bilateral disease was calculated for patients presenting with a unilateral tumour. Mutation analysis of the NF2 gene was carried out on all available cases presenting initially with unilateral disease. RESULTS: Of 240 patients with NF2 with vestibular schwannomas, 45 (18%; 32 sporadic, 13 familial) had either a unilateral tumour or delay in detection between the first and contralateral tumours. Among those tested for NF2 mutations, eight of 27 and nine of 13 were identified among sporadic and familial cases respectively. Sporadic cases showed a high female to male ratio and 19 of 32 have not as yet developed a contralateral tumour (mean 4.1 years after diagnosis of the first). Thirteen of 32 sporadic patients developed a contralateral tumour (mean 6.5 years after the first tumour diagnosis, range 0-22 years) compared with 11 of 13 familial patients (mean delay 5 years, range 0-16 years). Seven of the 45 patients had neither a family history of NF2 nor evidence of related tumours at initial presentation (six before the age of 35 years). CONCLUSION: The risk of patients with sporadic unilateral vestibular schwannomata developing a contralateral tumour in the absence of family history or other features of NF2 is low, but those presenting with other neurogenic tumours in addition to vestibular schwannoma are at high risk of harbouring an NF2 mutation in at least a proportion of their somatic cells.  (+info)

Midline cerebellar cystic schwannoma : a case report. (5/627)

An extremely unusual case of a cystic schwannoma in the region of the inferior vermis and posterior to the fourth ventricle in a fifteen year old boy is reported. The cystic tumour caused partial obstruction to the outflow of cerebrospinal fluid from fourth ventricle and resulted in development of supratentorial hydrocephalus. On investigations, the schwannoma simulated a Dandy-Walker cyst. The boy presented with symptoms of increased intracranial pressure. On surgery, the lesion was not arising from any cranial nerve, nor was it attached to brain parenchyma, blood vessel or to the dura. The possible histogenesis of the cystic schwannoma in a rare location is discussed.  (+info)

Association of lower cranial nerve schwannoma with spinal ependymoma in ? NF2. (6/627)

A 15 year old male, who had earlier been operated for intraspinal intramedullary ependymoma, subsequently developed a right cerebello pontine (CP) angle mass. A diagnosis of right CP angle ependymoma was considered, in view of established histology of previously operated spinal lesion. Histopathological examination of the well defined extra-axial mass, which was attached with ninth cranial nerve, however revealed a schwannoma. A diagnosis of Neurofibromatosis-2 (NF2) is strongly suspected, because of well established fact, that the spinal ependymomas may have association with lower cranial nerve schwannomas in NF2. Cranial and spinal MRI screening for early diagnosis of associated, asymptomatic lesions, in suspected cases of NF2, particularly in children, is recommended.  (+info)

Ventral T-1 neurinoma removed via hemilaminectomy without costotransversectomy--case report. (7/627)

A 39-year-old male presented with a spinal neurinoma originating from the T-1 anterior root and located ventral to the spinal cord. The tumor was removed by hemilaminectomy with only partial facetectomy without costotransversectomy. No stabilization was necessary, and no complications secondary to surgery occurred. Costotransversectomy is not necessary for neurinoma ventral to the spinal cord within the spinal canal at T-1 level because the transverse process protrudes more laterally and the spinal canal of the T-1 vertebra is wider than at other thoracic levels.  (+info)

Paediatric presentation of type 2 neurofibromatosis. (8/627)

BACKGROUND: Neurofibromatosis type 2 (NF2) is a highly penetrant autosomal dominant condition predisposing affected individuals to schwannomas and meningiomas. The proportion of children presenting with meningioma or schwannoma who have NF2 is not well described, and neither is the mode of presentation in most children with the inherited disease. AIMS: To determine the frequency of childhood meningioma and schwannoma cases caused by NF2 and the mode of presentation. METHODS: The records of the Manchester Children's Tumour Registry from 1954 were searched for cases of meningioma and schwannoma. Paediatric presentation in a large UK series of NF2 was also studied. RESULTS: 18% (61/334) of patients with NF2 on the UK database presented in the paediatric age group (0-15 years), frequently with the symptoms of an isolated tumour. More than half had no family history to alert the clinician to their susceptibility. Three of 22 children presenting with a meningioma on the Manchester Children's Tumour Registry have gone on to develop classic features of NF2. CONCLUSIONS: Clinicians should suspect NF2 in children presenting with meningioma, schwannoma, and skin features, such as neurofibromas/schwannomas, but fewer than 6 cafe au lait patches, who thus fall short of a diagnosis of neurofibromatosis type 1.  (+info)

MeSH-minor] Adolescent. Adult. Bone Cysts, Aneurysmal / diagnosis. Bone Cysts, Aneurysmal / pathology. Bone Cysts, Aneurysmal / surgery. Child. Female. Fibromatosis, Aggressive / diagnosis. Fibromatosis, Aggressive / physiopathology. Fibromatosis, Aggressive / surgery. Humans. Magnetic Resonance Imaging. Male. Middle Aged. Neoplasm Metastasis / diagnosis. Neoplasm Metastasis / physiopathology. Neoplasm Recurrence, Local / epidemiology. Nerve Sheath Neoplasms / diagnosis. Nerve Sheath Neoplasms / physiopathology. Nerve Sheath Neoplasms / surgery. Neurilemmoma / diagnosis. Neurilemmoma / physiopathology. Neurilemmoma / surgery. Neurofibroma / diagnosis. Neurofibroma / physiopathology. Neurofibroma / surgery. Neurosurgical Procedures. Pain / etiology. Paresthesia / etiology. Postoperative Complications / epidemiology. Retrospective Studies. Sarcoma / diagnosis. Sarcoma / physiopathology. Sarcoma / surgery. Tomography, X-Ray Computed. Treatment Outcome. Young ...
Pancreatic schwannoma is a rare tumor. Preoperative diagnosis of pancreatic schwannoma is challenging due to its tendency to mimic other lesions of the pancreas. We describe a case of pancreatic schwannoma and present a review of the cases currently reported in the English literature to identify characteristics of pancreatic schwannoma on imaging. A 53-year-old male presented with a history of intermittent periumbilical abdominal pain and lower back pain for 1 week. Based on ultrasound (US) and computed tomography (CT) findings, we made a preoperative diagnosis of solid pseudopapillary tumor and performed a standard pancreaticoduodenectomy. Pathological examination showed that the tumor was composed of spindle cells with a palisading arrangement, and immunohistochemistry revealed strong positive staining for S-100 protein, which was consistent with a diagnosis of pancreatic schwannoma. At the 8-month follow-up visit, the patient was doing well without recurrent disease, and his abdominal pain had
TY - JOUR. T1 - DNA Microarray analysis of immediate response to EGF treatment in rat schwannoma cells. AU - Oh, Min-Kyu. AU - Scoles, Daniels R.. AU - Pulst, Stefan M.. PY - 2005/9/1. Y1 - 2005/9/1. N2 - Epidermal growth factor (EGF) activates many intracellular effector molecules, which subsequently influence the expression levels of many genes involved in cell growth, apoptosis and signal transduction, etc. In this study, the early response of gene expressions due to EGF treatment was monitored using oligonucleotide DNA microarrays in rat schwannoma cell lines. An immunoblotting experiment showed the successful activation of EGF receptors and an effector protein, STAT5, due to EGF treatment. The microarray study showed that 35 genes were significantly induced and 2 were repressed within 60 min after the treatment. The list of induced genes included early growth response 1, suppressor of cytokine signaling 3, c-fos, interferon regulatory factor 1 and early growth response 2, etc. According to ...
Schwannomas are benign, well-differentiated tumors that originate from Schwann cells. Involvement of the cervical sympathetic nerve is relatively rare. Computed tomography is indispensable for the diagnosis. The treatment is surgical. Histological examination confirms the diagnosis. Horners syndrome postoperatively is supportive of the diagnosis. The rarity of giant cervical sympathetic chain schwannoma made the case of our patient interesting to report. Furthermore, our patients immense tumor size is very rare, and we could not find any similar report in the literature. Cervical sympathetic chain schwannoma is frequently confused with schwannoma of the vagus nerve on clinical and radiological examination, and its diagnosis can therefore be challenging for clinicians, radiologists, and pathologists. We report a rare case of cervical schwannoma in a 40-year-old Moroccan woman who presented with a large parapharyngeal mass. Computed tomography revealed a giant, heterogeneous, well-defined mass measuring
A neurilemmoma is a benign, usually encapsulated neoplasm derived from Schwann cells and, along with neurofibroma, constitutes one of the 2 most common benign peripheral nerve sheath tumors. The peripheral nervous system can be defined as nervous tissue outside the brain and spinal cord.
Spinal Schwannoma originates from the Schwann cells, hence it is called Schwannoma. The tumor localization is in various parts of the spinal cord, but prevails in cervical and thoracic. In the literature 70 to 80% of spinal schwannomas are reported to be intradural in location, and 15% with both intradural and extradural components. All 3 cases were female in their 4th-5th decade, presented with either low back pain, radiculopathy, weakness of both lower limbs associated with urinary incontinence. MRI revealed a well defined mass adjacent to conus medullary area located intradural, extramedullary. All three patients underwent microscopic assisted excision of the tumour. All patients had Good Early Outcome. Spinal schwannoma causing Conus Medullary Syndrome is rare. Back pain and radicular pain were most common early presenting symptoms while urinary symptoms occur later. Schwannomas typically arise from a single nerve root originating from the schwann cells. To obtain total resection, the ...
Schwannoma is a rare tumor among pancreatic neoplasms. Schwannomas vary in size, and most of them are cystic, mimicking pancreatic cystic lesions. Generally, a definitive diagnosis is made at the time of histological analysis. The mainstay treatment is surgical resection. We report an unusual presentation of pancreatic schwannoma with abdominal pain and several episodes of cholangitis in a 54-year-old Caucasian (Iranian) man. The condition was not diagnosed pre-operatively and Whipples procedure was performed. Pancreatic schwannoma is an important clinical entity to include in the differential diagnosis of pancreatic lesions. Pre-operative diagnosis is difficult but computed tomographic findings may be helpful. The tumor may also have atypical and rare presentations, such as cholangitis and weight loss. For benign tumors, simple enucleation is usually adequate, whereas malignant tumors require standard oncological resection.
SCHILLING Q, Alejandro; CELIS C, César; HIDALGO R, Alejandro y CANTIN L, Mario. Malignant Schwannoma in mandible: A case report. Rev. Otorrinolaringol. Cir. Cabeza Cuello [online]. 2009, vol.69, n.3, pp.265-270. ISSN 0718-4816. http://dx.doi.org/10.4067/S0718-48162009000300010.. The malignant schwannoma is a neoplasia whose origin is given by peripheral nerve tissue. It rarely appears in the head and neck, and even less frequently in maxillofacial territory. Here is a case report of a male patient, 9 years old, with a rapidly growing mass, expansive growth, located in the body and right mandibular ramus diagnosed as a malignant neurosarcoma or malignant schwannoma of the mandible, with mandibular canal, mental canal and foramen, soft tissue and bone involvement of the region.. Palabras clave : Malignant Schwannoma; Mandible; Radiographic exams; Computed tomography. ...
Canella, C., Costa, F., Klumb, E., Aymoré, I. L. and Marchiori, E. (2013), Ancient Schwannoma. Arthritis & Rheumatism, 65: 2036. doi: 10.1002/art.37983 ...
The triad of retrognathia, glossoptosis, and airway obstruction characterizes the Robin sequence along with the detrimental effects of mandibular hypoplasia on feeding, swallowing, and growth, which are very well described. Most of the babies are managed successfully on nonsurgical measures, but selected patients require surgical intervention in the neonatal period for survival. Conventionally, tracheostomy was done, which still remains a first-line surgical procedure for some surgeons. However, presently, most of the craniofacial centers have switched over to mandibular distraction procedures at an early stage and only sometimes tongue-lip adhesion (TLA). The literature is unclear as to which surgical procedure for securing the airway is more effective for these patients, and hence, the choice of procedure depends on the resources and surgical expertise. This article tells the tale of a neonate who survived by just placing a simple U-stitch between the tongue and lip, retracting the tongue ...
A spinal schwannoma is a slow-growing tumor on the nerve sheath. Though spinal schwannomas are usually benign, they still cause...
Learn more about schwannoma in children. View Schwann cell tumor treatment options at Dana-Farber/Boston Childrens, a leader in pediatric cancer care.
Physician assistants and nurse practitioners use Clinical Advisor for updated medical guidance to diagnose and treat common medical conditions in daily practice.
OBJECTIVE: A study of two cases of a rare variant of benign schwannoma showing areas mimicking neuroblastoma/peripheral primitive neuroectodermal tumour (PNET). METHODS: Sections of formalin fixed, paraffin embedded specimens were studied by tinctorial stains and immunohistochemistry, and the tissue retrieved from formalin was examined by electronmicroscopy in one case. RESULTS: The tumours were small and subcutaneous. Both showed features of benign schwannoma; one had a multinodular plexiform pattern. In addition, rosette-like structures consisting of collagenous cores surrounded by small round cells or slightly larger epithelioid cells were present. Tumour cells were positive for S100 protein, Leu7, and in one case GFAP, but were negative for neurofilament protein, synaptophysin, and MIC2. Type IV collagen surrounded individual cells. Electronmicroscopy in case 2 confirmed schwannian features (lamina, processes) and failed to show features of neuroblastoma (neuroendocrine granules). ...
In 1981 Taxy et al described first two cases of epithelioid schwannoma. The clinical, gross, and light microscopic features of two epithelioid tumours were not typical of either benign or malignant schwannoma. Electron microscopic features were indicative of benign Schwann cell tumours.. In 1985 Frank et al described electron microscopic features of Schwann cells in epithelioid schwannoma.. It was first reported as cutaneous epithelioid schwannoma by Kindblom et al in 1998.. The tumors are predominantly dermal/subcutaneous in location and involve the lower limb, upper limb, trunk and head/neck. These tumors may cause diagnostic errors due to their increased cellularity and epithelioid morphology. Typical histologic features of classic schwannoma such as Antoni A and B areas, Verocay bodies, and hyalinized vessels are either absent or only present in focal areas. Strong and diffuse S-100 protein expression is seen in both benign and malignant counterparts of epithelioid schwannoma. Type IV ...
In this thesis, first we provide a theoretical introduction about fluid-fluid interfaces, and the mathematical models to describe them using a macroscopic approach. Then, we introduce a new numerical method for calculating the equilibrium shape of fluid-fluid interfaces, proving its correctness and pointing out its applicability to study systems of ... read more colloidal particles adsorbed at fluid-fluid interfaces, and droplets in contact with solid surfaces, possibly curved and with heterogeneous chemical properties. A very important result presented in this thesis, and obtained through such a new numerical method, is the prediction that capillary interactions can drive cubic particles adsorbed at fluid-fluid interfaces to self-assembly into thermodynamically-stable honeycomb and hexagonal lattices. The capability of experimentally producing honeycomb (i.e. graphene-like) lattices of nanoparticles would be extremely important, and indeed it is currently a very hot research topic, because of ...
Nerve sheath tumors are composed of Schwann cells, which normally produce the insulating myelin sheath covering peripheral nerves.
Looking for Bronislaw Antoni Szwarce? Find out information about Bronislaw Antoni Szwarce. The following article is from The Great Soviet Encyclopedia . It might be outdated or ideologically biased. Born Oct. 7, 1834, on the estate of Lôchrist,... Explanation of Bronislaw Antoni Szwarce
MalaCards based summary : Schwannoma of Twelfth Cranial Nerve, also known as schwannoma of the twelfth cranial nerve, is related to neurilemmoma and plexiform schwannoma. An important gene associated with Schwannoma of Twelfth Cranial Nerve is NF2 (Neurofibromin 2). Affiliated tissues include 12th cranial nerve, tongue and thymus, and related phenotypes are Decreased cell migration and Increased cell migration ...
Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education. ...
Twenty-five to 45 percent of all schwannomas occur in the head and neck. Most of them arise along the vestibular portion of the eighth cranial nerve (acoustic neurinoma). They rarely originate from the peripheral facial nerve or other nerves within the parotid gland. Less than 4% of schwannomas involve the nasal cavity and paranasal sinuses. They arise from the branches of the trigeminal nerve and autonomic nervous system. We report two cases of schwannomas arisng from intraparotid facial nerve and nasal cavity. The first case diagnosed in a 62-year-old-man presented with 2-year-history of painless mass of the parotid gland. The lesion was found to be cystic through the pre operative examinations and investigations. The histology of the specimen retained an intraparotid cystic schwannoma. The second case concerned a 75-year-old-man presented with episodes of nasal obstruction, rhinorrhea, anosmia and headache. Histological study of the specimen showed fusiform cells with strongly and diffusely
Neural crest-derived tissues can be found throughout the body. In the thorax, neurogenic tumors are found most commonly in the posterior mediastinum (63%-96%).1-6 In fact, neurogenic tumors account for 75% of all posterior mediastinal neoplasms.3 The epidemiology of neurogenic tumors depends primarily on whether the patient is an adult or a child. Although one-third of mediastinal tumors diagnosed and treated in children are neurogenic, the incidence is only 12% to 14% in adults.7,8 Adults also have a lower rate of malignancy (5%-10% in adults compared with 40%-60% in children) (Fig. 162-1).1,7 The most common neurogenic tumors in adults arise from the nerve sheath (e.g., neurilemmoma and neurofibroma), whereas in pediatric populations the cells of origin are the ganglia (e.g., ganglioneuroma and neuroblastoma) (Table 162-3).1,9,10 ...
Awhile back I was doing more online reading on Schwannomas and I came across a discussion where several people mentioned that they didnt like the word survivor being used in association with Schwannomas. Our page and blog are called Schwannoma Survivors & Schwannoma Fighters so I took some time to think about it. Of course, a person may self-identify any way they wish. They can call themselves a flying goat headed crocodile zombie if they like! :) How a person self-identifies is very personal, and they have that right to assert whatever label they wish in a non-harmful manner. All of this called to mind the first thought I had when I thought about Schwannomas being discounted tumors - and that is, that if we have no mental frame of reference for understanding a Schwannoma, especially on a societal level - it would stand to reason that some people may not understand why some of us prefer to call ourselves Survivors. (And for some, no amount of suffering is enough to raise to this level ...
TY - JOUR. T1 - Clinical Features and Surgical Treatment of Schwannoma Affecting the Base of the Tongue. T2 - A Systematic Review. AU - Sitenga, Jenna Lamendola. AU - Aird, Gregory Alan. AU - Nguyen, Austin. AU - Vaudreuil, Adam. AU - Huerter, Christopher. PY - 2016/12/21. Y1 - 2016/12/21. N2 - Introduction Schwannomas of the head and neck account for 25-40% of all cases, with presentation at the base of the tongue as the most frequent site for intraoral tumors. Objectives Here, a systematic review was conducted to include 15 cases of patients with schwannoma of the base of the tongue. Data Synthesis Most patients presented with a single, painless, well-encapsulated nodule at the base of the tongue. These nodules were slow-growing, with an average of 13.3 months from onset to presentation. Most cases were accompanied by airway obstruction, indicated by symptoms of dysphagia, dysarthria, snoring, and sleep apnea. Overall, the histological studies were consistent with a benign schwannoma with a ...
Schwannomas are usually single, encapsulated, and benign tumors of the nerve sheath that arise from the perineural Schwann cells. Schwannomas are mostly seen in the fourth decade. Despite its location in the head and neck region is 25–45%, lip location of schwannoma are very rare. We present a case of a upper lip schwannoma in the pediatric age and review the literature.
A 36-year-old pregnant woman attended her first trimester scan and there was an incidental finding of a right-sided complex cystic adenexal mass. Further investigations including repeat pelvic ultrasound scans and MRI were performed due to its complex nature but were inconclusive. Multidisciplinary team review of images found the mass to be retroperitioneal, neurogenic in origin and involving the L5 vertebrae. The pregnancy continued to term and the baby was delivered at 39 weeks gestation by elective caesarean section due to the mass being likely to obstruct progress in labour. Postnatal biopsy confirmed a schwannoma. Plans were made for resection however as the woman was asymptomatic she declined surgery in favour of completing her family. She conceived again 2 years later and a second pregnancy was managed in the same way. The size of the schwannoma remained stable throughout this period. ...
Schwannomas are benign, slow-growing tumors of the nerve that may arise on cranial, spinal as well as peripheral nerves. Although relatively common intra-cranially accounting for 8% of all intra-cranial tumors, they seldom arise primarily within the infra-temporal fossa. This location is one of the least common anatomical sites for extra-cranial schwannommas whereas the pharyngeal area is the most frequent one (1). When they are located in the infratemporal fossa they usually extend intra-cranially (1) Schwannomas of the infra-temporal fossa can occur at any age with a peak incidence between the 2nd and the 4th decades with no sex prevalence (1, 4). Infratemporal location of schwannomma should incite to look for neurofibromatosis type II (NF-2)(1, 3) Pathologically, they are S-100 protein positive on immunohistochemical studies and they show two distinct areas unlike neurofibromas called Antoni A type and Antoni B type. The former is highly cellular and the latter is hypocellular , rich in ...
Schwannomas are benign tumors of nerve sheath and quite uncommon in oral cavity. The case of a 15 yr old male is presented who had a 4 months history ..
2The Second Hospital of Jilin University, Department of Neuroscience, Changchun, Jilin, China DOI : 10.5137/1019-5149.JTN.8153-13.0 Melanotic schwannoma is a rare Schwann cell tumor characterized by the deposition of melanin in the cell cytoplasm. Melanotic schwannoma varies greatly in terms of morphology and clinical manifestations. Here, we describe a patient with subdural extramedullary melanotic schwannoma of the thoracic spinal cord. The 47-year-old man presented with pain in his chest and back that had lasted a year, numbness and weakness in both his lower extremities for 20 days, and urinary retention for 4 days. Magnetic resonance imaging (MRI) revealed a subdural extramedullary lesion at the level of the T2-T4 thoracic spinal cord. A total resection of the mass was performed. A diagnosis of melanotic schwannoma was made based on the histopathological examination. During the six-month follow-up period, no recurrence of the tumor was observed. A long-term follow-up will be necessary to ...
Antoni Esteve i Subirana was the fifth in a long lineage of pharmacists beginning in 1787 with Tomàs Esteve i Gabanyach at the Plana de lOm (Manresa) pharmacy, where the seventh generation of pharmacists in the Esteve family continues to work today. Antoni Esteve was awarded an honors degree in pharmacy from the University of Barcelona in 1924 and started his doctoral studies in Madrid the following year. His plans to write his thesis in chemistry in Barcelona were interrupted by the unexpected death of his father in 1927, and he was obliged to make the family pharmacy in Manresa his first priority. In his memoirs, he wrote: I couldnt leave the pharmacy and clinical analyses that enabled me to earn a living, nor could I abandon my mother. Thus, the first step was to maintain the prestige that my father had brought to the Plana de lOm pharmacy. The small clinical analysis laboratory that had been installed in the apartment above the pharmacy a few years earlier would soon be used to ...
Schwannomas are benign neoplasms originating from the neural sheath and occuring most often in the soft tissue of the head and neck region. Intraoral neoplasms are uncommon. We report a case of schwannoma arising from the left side of the tongue of an 81-year-old man. The clinical presentation, light microscopic findings, and immunohistochemical features are described. The diode laser 830 10 nm treatment is discussed ...
PREVIOUS PROJECTS. 2011-2013. 1. p53/mouse double minute 2homolog complex deregulation in Merlin-deficient tumours. This project involved investigation of the role of p53 deregulation inschwannoma development and targeting pathways involved in p53 degradation. Inthis project I was first author.. 2. Gas6/Axl-family receptors in schwannoma pathological proliferation, adhesionand survival. In this project we have investigated the role of Axl receptor inschwannoma pathological proliferation, cell-matrix adhesion and survival. Inthis project I was first and corresponding author.. 2010-2012. 1. The role of insulin-like growth factors (IGF1/2) signalling inMerlin-deficient human schwannomas. 2. Insulin-like growth factor-binding protein-1 (IGFBP-1) regulates human schwannomaproliferation, adhesion and survival. In these studies we have demonstrated that IGF1/2 and IGFBP-1 arereleased from schwannoma cells and IGF-I receptor overexpressed leading toincreased schwannoma proliferation and cell-matrix ...
This case demonstrates multiple nerve sheath tumors through the chest, abdomen, and pelvis, predominantly within the spinal neural foramina. They are consistent with schwannomas, as it was later revealed a previously known history of neurofibroma...
NF2 stands for neurofibromatosis 2 and is one of the leading causes of schwannomas. In cases of NF2, patients will notice that non-cancerous tumors may develop. These tumors that are caused by NF2 typically grow around the spinal cord and brain. Schwannomas can also develop due to NF2 when tumors grow in the sheath of the nerve. The protective tissues that make up these nerve sheats are actually known as Schwann cells hence the term schwannoma.. The most common type of schwannomas that develop in patients who suffer from NF2 is spinal cord schwannomas. Its essential that you immediately treat schwannomas especially when they are located on the spinal cord as, if they are left untreated, it could lead to paralysis. Early treatment for spinal cord schwannomas is essential to ensuring that no lasting damage occurs. Once paralysis ensues, its very difficult to undo it.. ...
FINAL DIAGNOSIS: INTRAVENTRICULAR SCHWANNOMA (WHO GRADE I).. DISCUSSION:. Schwannomas account for up to 8% of intracranial neoplasms (14). The vast majority of cases arise from the cranial nerves, with the 8th nerve being most commonly involved (14). Rare cases of schwannomas may develop as primarily meningeal, intracerebral or intraventricular tumors (14). In a review of the literature, we found that only few cases of intraventricular Schwann cell tumors have been reported so far (1,4-9,12,13). These tumors were generally located in the lateral or fourth ventricles. To our knowledge, the tumor of our patient is the first reported schwannoma of the third ventricle.. The origin of intraventricular schwannomas is unknown. However, similar to the hypotheses about the histogenesis of spinal intramedullary (3) and intracerebral schwannomas (11), which are slightly more common than intraventricular schwannomas, different possibilities may be considered. Schwannomas may arise from the sympathetic nerve ...
Schwannomas are homogenous tumors of Schwann cells. These cells insulate the peripheral nerves and allow rapid transmission of impulses between CNS and periphery. They produce symptoms by impinging on the nerves. Mostly schwannoma occur in peripheral nerves of head and neck region. Rarely these are seen in the GIT.. The GIT schwannomas have a tendency to ulcerate, bleed, enlarge and cause obstruction. The chance of malignant transformation is 0.3% (2). These tumors also exist with other extra and intra-intestinal tumors; primary adeno-carcinoma of ascending colon (3). An association with Hodgkin Lymphoma and Von Recklinghausen disease was reported by Qasi et al. (2). Despite occurring in the submucosal layer of GI tract they can enlarge up to 120mm in size and cause obstruction (4).. The exact etiology of schwannomas is not known. We hypothesize that chronic irritation of GI lining which leads to stimulation of Schwann cell over growth can contribute to the formation of schwannoma since the ...
Schwannomas arise from Schwann cells of the peripheral nerve sheath. The most common locations include the head, neck, and extensor surfaces of the extremities. Intramammary schwannomas are very rare and account for only 2.6% of schwannomas. A review
Sections show a benign nerve sheath tumor with predominantly Antoni A architecture. Portions of a nerve and ganglion are encased within the tumor.. ...
Meningiomas and Neurofibromas in the spine are benign tumours which occur outside the spinal cord and cause symptoms mostly from causing pressure on the nerves or the spinal cord depending […] ...
A 39-year-old female had been subject to headache, and intermittent seizures for 9 years and decreasing memory for one year, without obvious neurological signs. An MRI revealed a 2×2 cm contrast-enhanced lesion in the frontal lobe, with a cyst and peritumoral edema, which was not attached to the dura or falx. Preoperatively, it was diagnosed as a glioma. Total surgical removal of the lesion led to a favorable result. Post-operative histo-pathological examination showed characteristic Antoni A and B areas consistent with intraparenchymal schwannoma. Intraparenchymal schwannoma is an extremely uncommon lesion, which is seen mostly in young adults and children. The main clinical symptoms include rising-intracranial-pressure-related manifestations and associated seizure disorders. The possible developmental origins, histological, imaging features, and protocols of treatment for this entity are discussed. ...
Abstract Schwannomas are usually benign tumors that result from the proliferation of the perineural cells. Since these tumors are very rare, misdiagnosis is common. Clinically, these tumors may present as a cranial neuropathy, abdominal or soft tissue mass, intracranial lesion, or with spinal cord compression. Histologically, these tumors are encapsulated, highly vascular, and composed of a homogenous pattern of biphasic fusiform-shaped cells that may have a palisaded appearance. We present a case of nineteen years old primigravida with 22 weeks pregnancy with an adnexal mass. The diagnosis of schwannomas was made on laprotomy and confirmed on histopathological examination. The case is reported not only due to its rarity but due to its association with pregnancy and its successful outcome.. ...
Our lab has recently published review articles on two different topics. A review on Mitochondrial Ribosome Assembly in Health and Disease by Dasmanthie De Silva, Flavia Fontanesi, Ya-Ting Tu, Alexey Amunts and Antoni Barrientos was published in Cell Cycle. A review on Caloric restriction, Mitochondrial Function and Aging was published in BBA-Bioenergetics.. Read More →. ...
Outcry, Aside, No I.D. hardcorepunk from Groningen The Netherlands live concert at Can Cabrit, Sant Antoni De Vilamajor SPA 26 July 1998
After surgery for localized prostate cancer, you may find that treatment related side effects may lead to some difficulty readjusting to everyday life. You may notice an increase in your stress levels or experience problems in your relationships. Even though you may be physically healthy, you may need to work on improving your quality of life.
Good circulation is the key Blood circulation is the human bodys supply and removal system. It supplies the tissues and organs with nutrients and oxygen while removing and disposing of resulting waste products. 75% of this process takes place in the smallest blood vessels - the arterioles, venules, and capillaries. Therefore the name for it:…
La Biblioteca Digital de les Illes Balears conté informació científica, erudita i cultural produïda a les Illes Balears. Articles científics, monografies, manuscrits, llibres, revistes i premsa forana, mapes, documents de fons antic, etc. de diferents institucions (UIB, col·legis profesionals, arxius, etc.).
La Biblioteca Digital de les Illes Balears conté informació científica, erudita i cultural produïda a les Illes Balears. Articles científics, monografies, manuscrits, llibres, revistes i premsa forana, mapes, documents de fons antic, etc. de diferents institucions (UIB, col·legis profesionals, arxius, etc.).
Malignant peripheral nerve sheath tumor (MPNST) is a rare malignant counterpart to benign neurogenes tumors such as schwannomas and neurofibromas and account for approximately 5 10 % of all soft tissue sarcomas. This neoplasm is also referred to older designations as a malignant schwannoma, malignant neurilemmoma or neurogenic sarcoma. A patient was a woman of 59 years old with a diagnosed malignant neurilemmoma, treated since 1993. Operated several times and subjected to radiotherapy due to the local recurrence of the tumors located in the soft tissues of the back until 2002; Treated with chemotherapy (doxorubicin) and operated due to lung metastases. The therapy resulted in a total remission that lasted 12 months. In 2004 a new small tumor was diagnosed in the right lung, which had been followed up until 2006. The patient did not give permission to a second surgery, treated with ifosfamide. In 2006 she was operated for renal cell carcinoma of the left kidney. In 2009, due to a following ...
The characteristic symptom of schwannomatosis is the growth of nerve tumors called schwannomas throughout the body.. Symptoms of schwannomatosis are very similar to those of the related tumor disease NF2. However, NF2 commonly involves the eighth cranial nerve, which controls balance and hearing, whereas schwannomatosis does not.. The distinction between schwannomatosis and NF2 is not minor: the diseases are managed differently and carry different outlooks. For instance, schwannomatosis is associated with an average life expectancy, while NF2 is associated with a shorter-than-average life expectancy.. Schwannomatosis can reduce quality of life for some patients, however. Without treatment, the nerve tumors associated with this disease can cause nerve pain and other symptoms.. As spinal schwannomas grow and put pressure on the spinal nerves, they can cause symptoms including changes in sensation (pain, numbness, pins and needles), changes in movement (clumsiness, trouble walking), or trouble ...
Herein is a report of a case of a 34-year-old man whose chief complaint was right lower abdominal pain. He was diagnosed with acute appendicitis. Additionally, an abdominal CT scan found retroperitoneal tumor approximately 5 cm in size, with an imaging effect, located adjacent to the dorsal side of the inferior vena cava. For this suspected neurogenic tumor, laparoscopic appendectomy and retroperitoneal tumorectomy were performed after conservative treatment of appendicitis. The retroperitoneal tumor was 5.5 × 3.5 cm in size, had a capsule, smooth surface and soft elasticity, and the divided face was solid white. The histopathological work-up revealed that the tumor was a benign mixed-type schwannoma, in which spindle cells were arranged. The patients postoperative course was uneventful, and he was discharged from the hospital 7 days after the surgery. In general, retroperitoneal schwannoma is not associated with any symptoms, so it is often discovered accidentally, as in this case. The appropriate
The MR appearances are those of a mass in the carotid space, most likely a nerve sheath tumor. Ultrasound biopsy showed features of benign peripheral nerve sheath tumor: the morphology is more suggestive of neurofibroma than schwannoma. HIST...
OBJECTIVE To report the occurrence of an orbital schwannoma probably arising from the optic nerve sheath. PATIENT AND METHOD Clinical case report. RESULTS A 65-year-old patient presented with a painless, progressive right proptosis over five years. Magnetic resonance imaging revealed an intraconal mass, radiographically consistent with a cavernous hemangioma. Surgical resection was performed and pathology disclosed a schwannoma affecting the optic nerve. The optic nerve, which does not contain Schwann cells, is exceptionally rarely affected by Schwannomas, which may arise from a few sympathetic nerve fibers or from a few ectopic cells, not normally present within the optic nerve. CONCLUSION The radiologic appearance of the very rare optic nerve Schwannoma may be confused with a cavernous hemangioma, a more common tumor in this location.
Get information, facts, and pictures about Antoni van Leeuwenhoek at Encyclopedia.com. Make research projects and school reports about Antoni van Leeuwenhoek easy with credible articles from our FREE, online encyclopedia and dictionary.
GOMEZ GARCIA, I. et al. Benign retroperitoneal schwannoma: I diagnose incidental in patient with hematuria of the percusionist. Actas Urol Esp [online]. 2005, vol.29, n.5, pp.511-515. ISSN 0210-4806.. The incidence of retroperitoneal primitive tumour varies from the 0,3 to 3%. The sarcomas suppose the group but it frequents of retroperitoneal tumour, being the Schwannoma an unusual tumour with an incidence from 1% to 5% of the retroperitoneal primary tumours. The schwannoma also denominated neurinoma or neurolenoma, it is a derived tumour of the cells of Schwann of the outlying nerves. It is characterized by their clinical and radiological inespecify, being the diagnose pathological, with intense positive inmunohistoquimics to the protein S-100. The election treatment is the surgical remove, with wide margins; not being described cases of malignización neither of metastasis at distance, but if the recurrence existence at probably secondary local level to incomplete resection.. Palabras clave : ...
MATERIAL AND METHODS. Microscopic slides from cases of the Pathology Service diagnosed as STS, with morphological findings compatible with PNST and PWT were reviewed. Soft tissue sarcomas with morphological findings suggestive of fibrosarcoma, liposarcoma, myxosarcoma, leiomyosarcoma and rhabdomyosarcoma were not included in the study.. Slides stained with H&E were reviewed under light microscopy for the classification of histologic type. The diagnosis of PWT was made when patterns of vascular growth such as staghorn, pericapillary whorls, placentoid, and whorls or bundles radiating from the middle tunica media and adventitia were seen alone or in combination (Avallone et al., 2007). The classic neural pattern consisted of classical Antoni A (areas with thick spindle cell arrangements) and Antoni B (hypocellular areas with an abundant myxoid matrix), interwoven bundles, and whorls around collagen bundles (Dennis et al., 2011). The cases that shared both vascular and neural patterns were ...
4Department of Neurosurgery, Bakirkoy Psychiatric and Neurological Diseases Hospital, 2nd Neurosurgery Clinic, İstanbul, Turkey A rare case of a solitary schwannoma arising within parenchyma of the brain is reported. A 37-year old right-handed man presented with a 3- month history of progressive headaches, lethargy and vomiting. The initial diagnosis being considered was primary intracranial tumor, including high-grade astrocytoma, metastasis or lymphoma Histopathological examination revealed schwannoma. Cysts, calcification and mild to moderate peritumoral edema are common in intracerebral schwannomas. However, our case is atypical and has no cystic component, calcification or vascularization. The pathogenesis and neuroradiological findings of intraparenchymal schwannomas are discussed and we review the related literature. Keywords : Cerebral tumor, Focal convulsive seizure, Schwannoma ...
Industrial fluid-fluid reactors may broadly be divided into gas-liquid and liquid-liquid reactors. Gas-liquid reactors typically may be used for the manufacture of pure products (such as sulfuric acid, nitric acid, nitrates, phosphates, adipic acid, and other chemicals) where all the gas and liquid react. They are also used in processes where gas-phase reactants are sparged into the reactor and the reaction takes place in the liquid phase (such as hydrogenation, halogenation, oxidation, nitration, alkylation, fermentation, oxidation of sludges, production of proteins, biochemical oxidations, and so on). Gas purification (in which relatively ...
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Ganglioneuromas are rare benign tumours of neurogenic origin that most frequently develop in the cervical sympathetic chain,1 2 with genetic associations demonstrated with Neurofibromatosis type 1 (NF-1). We report the case of a 41-year-old woman with a history of cavum neoplasm at the age of 23. This tumour was classified after assessment of extension as T1N0M0 (tumour, node, metastases). Pathological examination of a biopsy concluded to a keratinising squamous cell carcinoma. The patient was then irradiated (2D Cobalt radiotherapy). The patient presented with gait trouble that appeared a few weeks ago. Clinical examination found a Brown-Séquard syndrome with paresis and loss of proprioception on the left side, and loss of pain and temperature sensation on the right side. Medullar MRI (figures 1 and 2) showed an intradural extramedullary well-circumscribed mass with an hourglass shape from C5 to C6 extending through the left neural foramina. T1-weighted images show homogeneous hypointense ...
Object. The authors evaluated the long-term efficacy of gamma knife surgery (GKS) in patients with trigeminal schwannomas.. Methods. Fifty-six patients, 31 women and 25 men (mean age 42 years), underwent GKS for trigeminal schwannomas. Fourteen had previously undergone surgery, and GKS was the primary treatment in the remaining 42 patients. The mean target volume was 8.7 cm3 (range 0.8-33 cm3); the mean maximum dose was 27 Gy (range 20-40 Gy); the mean tumor margin dose was 13.3 Gy (range 10-15 Gy); and the mean follow-up period was 68 months (range 27-114 months).. Disappearance of the tumor occurred in seven patients. An obvious decrease in tumor volume was observed in 41 patients, four tumors remained unchanged, and four tumors progressed at 5, 26, 30, and 60 months, respectively. One patient with disease progression died of tumor progression at 36 months after GKS. The tumor growth control rate in this group was 93% (52 of 56 cases).. Mild numbness or diplopia was relieved completely in 14 ...
Thirty-one females and 25 males were included in the study. The age of onset ranged from 2 to 70 years. Six patients had a single schwannoma, 11 patients had 2 to 7 and 39 patients more than 10 schwannomas. Two patients had a positive family history. Nine different sequence variants scattered along the sequence of SMARCB1 were found (Table 2). Three were present in 12 patients, 10 in a heterozygous and two in a homozygous state indicating a complete linkage disequilibrium (Fisher exact test, p , 10-6). Two of them were present in dbSNP as rs2229354 (c.897G , A) and rs5030613 (c.1119-41G , A); the third change (c.1149-41G , A) was also considered as a polymorphism. The remaining 6 variants were unique: c.30del, c.34C , T and c.832C , T were expected to truncate the protein; c.500+5G , T was predicted to suppress the donor splicing site of exon 4, leading to p.Arg121_Cys167delinsSer and lacking the DNA-binding domain. Using the MaxEnt program, maximum entropy of -5.62 was computed compared to 0.87 ...
Learn the Excision of Schwannoma from ulnar nerve surgical technique with step by step instructions on OrthOracle. Our e-learning platform contains high resolution images and a certified CME of the Excision of Schwannoma from ulnar nerve surgical procedure.
Sphenoid and ethmoidal masses are uncommon in children.. Aneurysmal bone cysts (ABC) may be primary or secondary, this this case secondary to a ethmoidal ossifying fibroma.. ABCs are typically located in the long bones, with less than 1% occurring in the skull. Only a limited number have been described in the ethmoids.. ABCs are multi-cystic masses of non-endothelial line blood filled spaces, which gives rise to the characteristic appearances on imaging, in particular MRI, with a mass separated by thin septae, which contain fluid-fluid levels. The levels representing blood of variable age, thus given different signal characteristics.. ...
talk , contribs) (Created page with ==Background== *AKA vestibular schwannoma *Schwann cell derived tumor of cranial nerve VIII *Typically arise from vestibular division of CN VIII--, expands--, projects fro...) ...
Peripheral nerve tumours are uncommon. Our aims were to calculate the incidence and relative frequencies, to define sites of nerve tumours and to judge preoperative symptoms and outcomes of intervention. The results of 53 patients, with 68 tumours and histopathological diagnoses of true neoplasms, who had been operated on at the Department of Hand Surgery, Malmo, Sweden, between 1986 and 2007, were analysed. Schwannomas were the most common tumour (n=42). The incidence of schwannomas was 0.62/100 000 inhabitants/year in Malmo during that time period. The median nerve was most affected, closely followed by the ulnar and digital nerves. The preferred sites were the forearm, the thumb, and the digits. The most common preoperative symptom was pain. Loss of sensation was the most common postoperative complication. However, 33/53 patients (62%) were completely free of symptoms after excision. Patients should be provided with meticulous information preoperatively ...
This patient has been submitted to multiple surgeries along his life, the last one removed partially and confirmed the diagnosis of the right trigeminal schwannoma. Neurofibromatosis type 2 patients are known to present with multiple meningioma...
Neurogenic tumors are the most common cause of posterior mediastinal masses. Schwannomas and neurofibromas arise from peripheral nerves and are more common in
Fingerprint Dive into the research topics of Thoracic subpial intramedullary schwannoma involving a ventral nerve root: A case report and review of the literature. Together they form a unique fingerprint. ...
The primary purpose of this proposed 5-year study is to determine whether a Cognitive Behavioral Stress Management (CBSM) intervention, demonstrated to be effective in reducing distress, enhancing coping, and maintaining health among HIV+ non-drug abusers (see Schneiderman and Antoni, 2000), can be effectively adapted for our target population of culturally diverse, HIV+, low-income Recovering Drug Abusers (RDAs). Since the late 1980s, members of our research team (i.e., Schneiderman, Antoni, Klimas, Fletcher) have been developing, refining and evaluating the effects of CBSM among HIV+ Men who have Sex with Men (MSM). In the early/mid 90s, we began to adapt and evaluate the effects of CBSM in other non-drug abusing subgroups that were emerging with increasing levels of HIV seroprevalence (e.g., pregnant women, African American and Hispanic men and women). After accumulating considerable support for the effectiveness of CBSM in these subgroups in the late 90s, our research team (i.e., Malow, ...
The primary purpose of this proposed 5-year study is to determine whether a Cognitive Behavioral Stress Management (CBSM) intervention, demonstrated to be effective in reducing distress, enhancing coping, and maintaining health among HIV+ non-drug abusers (see Schneiderman and Antoni, 2000), can be effectively adapted for our target population of culturally diverse, HIV+, low-income Recovering Drug Abusers (RDAs). Since the late 1980s, members of our research team (i.e., Schneiderman, Antoni, Klimas, Fletcher) have been developing, refining and evaluating the effects of CBSM among HIV+ Men who have Sex with Men (MSM). In the early/mid 90s, we began to adapt and evaluate the effects of CBSM in other non-drug abusing subgroups that were emerging with increasing levels of HIV seroprevalence (e.g., pregnant women, African American and Hispanic men and women). After accumulating considerable support for the effectiveness of CBSM in these subgroups in the late 90s, our research team (i.e., Malow, ...
Luciano, Juan V.; Forero, Carlos G.; Cerdà-Lafont, Marta; Peñarrubia-María, María Teresa; Fernández-Vergel, Rita; Cuesta-Vargas, Antonio I.; Ruíz, José M.; Rozadilla-Sacanell, Antoni; Sirvent-Alierta, Elena; Santo-Panero, Pilar; García-Campayo, Javier; Serrano-Blanco, Antoni; Pérez-Aranda, Adrián; Rubio-Valera, María Less ...
Neutral models are constructed to help scientists understand complex patterns of form, structure, or behavior that may not be observed directly. In this unique volume, eight distinguished scientists present a comprehensive study of the use of neutral models in testing biological theories. They describe the principles of model testing and explore how they are applied to research in molecular biology, genetics, ecology, evolution, and paleontology.
The five-year grant, totaling more than $4.5 million, consolidates three RO1 awards and gives Barrientos the status of NIH investigator. The MIRA program, currently in a pilot testing phase, supports investigators overall research programs through a single, unified grant rather than individual project grants. The goal is to provide investigators with greater stability and flexibility, thereby enhancing scientific productivity and the chances for important breakthroughs ...
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Gennaro De Pascale, Otavio T. Ranzani, Saad Nseir, Jean Chastre, Tobias Welte, Massimo Antonelli, Paolo Navalesi, Eugenio Garofalo, Andrea Bruni, Luis Miguel Coelho, Szymon Skoczynski, Federico Longhini, Fabio Silvio Taccone, David Grimaldi, Helmut J.F. Salzer, Christoph Lange, Filipe Froes, Antoni Artigas, Emili Díaz, Jordi Vallés, Alejandro Rodríguez, Mauro Panigada, Vittoria Comellini, Luca Fasano, Paolo M. Soave, Giorgia Spinazzola, Charles-Edouard Luyt, Francisco Alvarez-Lerma, Judith Marin, Joan Ramon Masclans, Davide Chiumello, Angelo Pezzi, Marcus Schultz, Hafiz Mohamed, Menno Van Der Eerden, Roger A.S. Hoek, D.A.M.P.J. Gommers, Marta Di Pasquale, Rok Civljak, Marko Kutleša, Matteo Bassetti, George Dimopoulos, Stefano Nava, Fernando Rios, Fernando G. Zampieri, Pedro Povoa, Lieuwe D. Bos, Stefano Aliberti, Antoni Torres, Ignacio Martín-Loeches ...
Club for Gaudi and Barcelona admirers. Free welcome gifts. Information about Gaudi updated regularly. Unpublished pictures. Handcraft items for gifts. Come and join !!! -
La démarche audacieuse qui sexprime dans Chikakusei Dokukakuryu est la synthèse de deux antagonismes : elle est à la fois avec son époque et contre celle-ci. Avec son époque parce que les larges empâtements marquent la primauté du corps de lartiste sur la toile, à limage des Expressionnistes Abstraits de New York et du Tachisme de Paris. Par ses airs de performance, elle anticipe les happenings dAllan Kaprow ; par lusage du corps comme pinceau elle répond aux Anthropométries dYves Klein. Mais elle est aussi contre son époque, comme le résumera en 1992 Antoni Tàpies :« Y a-t-il plus grande provocation, plus grande preuve que lon va à lencontre de tout, dans le domaine de lart, que de peindre avec les pieds ? […] Demblée, Shiraga propose donc comme art ce que nos habitudes mentales considèrent comme négatif » (Antoni Tàpies in Kazuo Shiraga, Paris, Galerie Stadler, 1992 ...
Surgical treatment of cervical neurinoma (costs for program #50965) ✔ Alfried Krupp Hospital in Essen-Steele ✔ Department of Plastic, Reconstructive, Aesthetic and Hand Surgery ✔ BookingHealth.com
Direct and remote outcome after treatment of tumours involving the central skull base with the extended subfrontal approach.: Extended subfrontal approach is a
A device for removing cortical tissue from a vertebral endplate, comprising: an elongated handle; a rotatably-mounted driving rod received in said handle; a dumbbell-shaped burr connected to said driving rod; and an eccentric support having first and second opposite ends, said first end being connected to said handle and said second forming a collar around said dumbbell-shaped burr.
Carles Barceló-Vidal, Josep Antoni Martún-Fernández and Glòria Mateu-Figueras. 13.1 Introduction 176. 13.2 Vector-Valued Functions on the Simplex 177. 13.2.1 Scale-Invariant Vector-Valued Functions on Rn + 177. 13.2.2 Vector-Valued Functions on Sn 178. 13.3 C-Derivatives on the Simplex 178. 13.3.1 Derivative of a Scale-Invariant Vector-Valued Function on Rn + 178. 13.3.2 Directional C-Derivatives 180. 13.3.3 C-Derivative 182. 13.3.4 C-Gradient 184. 13.3.5 Critical Points of a C-Differentiable Real-Valued Function on Sn 184. 13.4 Example: Experiments with Mixtures 185. 13.4.1 Polynomial of Degree One 185. 13.4.2 Polynomial of Degree Two 186. 13.4.3 Polynomial of Degree One in Logarithms 187. 13.4.4 A numerical Example 188. 13.5 Discussion 189. Acknowledgements 190. References 190. Part IV Applications 191. 14 Proportions, Percentages, PPM: Do the Molecular Biosciences Treat Compositional Data Right? ...
TY - JOUR. T1 - Multicenter analysis of the SLC6A3/DAT1 VNTR haplotype in persistent ADHD suggests differential involvement of the gene in childhood and persistent ADHD. AU - Franke, Barbara. AU - Vasquez, Alejandro Arias. AU - Johansson, Stefan. AU - Hoogman, Martine. AU - Romanos, Jasmin. AU - Boreatti-Hümmer, Andrea. AU - Heine, Monika. AU - Jacob, Christian P.. AU - Lesch, Klaus-Peter. AU - Casas, Miguel. AU - Ribasés, Marta. AU - Bosch, Rosa. AU - Sánchez-Mora, Cristina. AU - Gómez-Barros, Nria. AU - Fernndez-Castillo, Noèlia. AU - Bayés, M. nica. AU - Halmøy, Anne. AU - Halleland, Helene. AU - Landaas, Elisabeth T.. AU - Fasmer, Ole B.. AU - Knappskog, Per M.. AU - Heister, Angelien J. G. A. M.. AU - Kiemeney, Lambertus A.. AU - Kooij, J. J. Sandra. AU - Boonstra, A. Marije. AU - Kan, Cees C.. AU - Asherson, Philip. AU - Faraone, Stephen V.. AU - Buitelaar, Jan K.. AU - Haavik, Jan. AU - Cormand, Bru. AU - Ramos-Quiroga, Josep Antoni. AU - Reif, Andreas. PY - 2010. Y1 - 2010. N2 - ...
Mejglo, Zenon Antoni (1967) The investigation into the disturbance of lipid patterns in human serum by chemical agents. Unspecified thesis, University of Tasmania. ...
The project Synthetic nanoparticles as an innovative treatment in sepsis (SPRINT-4-SEPSIS) will be funded by the Ramón Areces Foundation within the framework of the XIX National Contest of Life and Material Sciences Research Grants. Anna Roig will be part of the project. The project is a collaboration between Dr. Antoni Artigas, from the Parc Taulí Foundation, Dr. Anna Roig, of the institute of Materials Science of Barcelona (ICMAB-CSIC), and Dr. Daniel Closa, from the Institute of Biomedical Research of Barcelona (IIBB-CSIC).. The study aims to create a therapeutic product formed by the basic components of mesenchymal stem cells which will improve the injury effects produced in sepsis. The researchers will identify and analyze the active components of these cells and subsequently encapsulate them in the form of nanoparticles in order to provide a new therapeutic strategy to regenerate tissues injured by sepsis.. The translation to the clinic of this product would allow to solve the ...
Toigo, V.; Boilson, D.; Bonicelli, T.; Piovan, R.; Hanada, M.; Chakraborty, A.; Agarici, G.; Antoni, V.; Baruah, U.; Bigi, M. et al.; Chitarin, G.; Dal Bello, S.; Decamps, H.; Graceffa, J.; Kashiwagi, M.; Hemsworth, R.; Luchetta, A.; Marcuzzi, D.; Masiello, A.; Paolucci, F.; Pasqualotto, R.; Patel, H.; Pomarao, N.; Rotti, C.; Serianni, G.; Simon, M.; Singh, M.; Singh, N. P.; Svensson, L.; Tobari, H.; Watanabe, K.; Zaccaria, P.; Agostinetti, P.; Agostini, M.; Andreani, R.; Aprile, D.; Badyopadhyay, M.; Barbisan, M.; Battistella, M.; Bettini, P.; Blachford, P.; Boldrin, M.; Bonomo, F.; Bragulat, E.; Brombin, M.; Cavenago, M.; Chuilon, B.; Coniglio, A.; Croci, G.; Dalla Palma, M.; DArienzo, M.; Dave, R.; De Esch, H. P. L.; De Lorenzi, A.; De Muri, M.; Delogu, R.; Dhola, H.; Fantz, U.; Fellin, F.; Fellin, L.; Ferro, A.; Fiorentin, A.; Fonnesu, N.; Franzen, P.; Fröschle, M.; Gaio, E.; Gambetta, G.; Gomez, G.; Gnesotto, F.; Gorini, G.; Grando, L.; Gupta, V.; Gutierrez, D.; Hanke, S.; Hardie, C.; ...
by Floridia, M and Masuelli, G and Meloni, A and Cetin, I and Tamburrini, E and Cavaliere, AF and Dalzero, S and Sansone, M and Alberico, S and Guerra, B and Spinillo, A and Chiadò Fiorio Tin, M and Ravizza, M and Mori, F and Ortolani, P and Nogare, E.R and Di Lorenzo, F and Sterrantino, G and Meli, M and Polemi, S and Nocentini, J and Baldini, M and Montorzi, G and Mazzetti, M and Rogasi, P and Borchi, B and Vichi, F and Del Pin, B and Pinter, E and Anzalone, E and Marocco, R and Mastroianni, C and Mercurio, V.S and Carocci, A and Grilli, E and Maccabruni, A and Zaramella, M and Mariani, B and Natalini Raponi, G and Guaraldi, G and Nardini, G and Stentarelli, C and Beghetto, B and Degli Antoni, A.M and Molinari, A and Crisalli, M.P and Donisi, A and Piepoli, M and Cerri, V and Zuccotti, G and Giacomet, V and Coletto, S and Di Nello, F and Madia, C and Placido, G and Vivarelli, A and Castelli, P and Savalli, F and Portelli, V and Sabbatini, F and Francisci, D and Bernini, L and Grossi, P and ...
23 April 2016. The group led by Dr Antoni Bayés-Genís of the Department of Cardiology of the Germans Trias i Pujol Hospital (HUGTiP) and the Germans Trias i Pujol Health Research Institute (IGTP) have signed a licence agreement with the American Company Critical Diagnostics for biomarker soluble neprilysin (sNEP).. ...
23 April 2016. The group led by Dr Antoni Bayés-Genís of the Department of Cardiology of the Germans Trias i Pujol Hospital (HUGTiP) and the Germans Trias i Pujol Health Research Institute (IGTP) have signed a licence agreement with the American Company Critical Diagnostics for biomarker soluble neprilysin (sNEP).. ...
MacChioni, P., Boiardi, L., Muratore, F., Restuccia, G., Cavazza, A., Pipitone, N., Catanoso, M., Mancuso, P., Luberto, F., Rossi, P. G. & Salvarani, C., Apr 1 2019, In : Rheumatology (United Kingdom). 58, 4, p. 609-616 8 p.. Research output: Contribution to journal › Article ...
Alejandro, R., Saab, P., Weiss, S. M., Antoni, M. H., Feaster, D. J., Florez, H. J., Schneiderman, N., Hurwitz, B., Clarkson, J., Goldberg, R., Penedo, F., Elsas, L., Goldschmidt-Clermont, P., Ramsey, R. E., Scott, G. B., Levis, S., Berkovitz, G. D., Miguez, M., Haslett, P. A. J., Sipski, M., Marks, J., Goodkin, K., Ramsay, E., Jayaraman, S., Hoffman, R. W., Duara, S., Bandstra, E. S., Nash, M. S. & Scott, G. B.. National Institutes of Health. 8/15/02 → 9/30/07. Project: Research project ...
Ling, I., Mihalik, B., Etherington, L. A., Kapus, G., Pálvölgyi, A., Gigler, G., Kertész, S., Gaál, A., Pallagi, K., Kiricsi, P., Szabó, É., Szénási, G., Papp, L., Hársing, L., Lévay, G., Spedding, M., Lambert, J. J., Belelli, D., Barkóczy, J., Volk, B. & 3 others, Simig, G., Gacsályi, I. & Antoni, F. A., júl. 30 2015, In : European Journal of Pharmacology. 764, p. 497-507 11 p.. Research output: Article ...
Previous designations for schwannomas include neurinoma and neurilemmoma. The candidate schwannomatosis gene, named SMARCB1, is ...
2002). "Pneumosinus dilatans Associated with Orbital Neurilemmoma" (PDF). Chinese Medical Journal. Archived from the original ( ...
Neurilemmoma of the anterior ethmoidal nerve encroaching upon the nasolacrimal duct. British Journal of Ophthalmology. 76(12): ... Leib, M. L.; Chynn, E. W.; Michalos, P.; Schubert, H. D.; Leib, E. J. (December 1992). "Neurilemmoma of the anterior ethmoidal ...
... neurilemmoma and neurofibroma which are large growing painless tumours usually found on the tongue (3). Neurofibroma may occur ...
... neurilemmoma, neurinoma, neurolemmoma, Schwann cell tumor) Solitary angiokeratoma Solitary cutaneous leiomyoma Solitary ...
... neurilemmoma MeSH C04.557.580.625.650.595.610 - neuroma, acoustic MeSH C04.557.580.625.650.700 - paraganglioma MeSH C04.557. ... neurilemmoma MeSH C04.557.465.625.650.595.610 - neuroma, acoustic MeSH C04.557.465.625.650.595.610.500 - neurofibromatosis 2 ... neurilemmoma MeSH C04.557.580.600.610.595.610 - neuroma, acoustic MeSH C04.557.580.600.610.595.610.500 - neurofibromatosis 2 ... neurilemmoma MeSH C04.557.580.600.580 - neurofibroma MeSH C04.557.580.600.580.585 - neurofibroma, plexiform MeSH C04.557. ...
... neurilemmoma MeSH C10.551.775.500.750 - neurofibroma MeSH C10.551.775.500.750.500 - neurofibroma, plexiform MeSH C10.551. ... neurilemmoma MeSH C10.668.829.725.500.600 - neurofibroma MeSH C10.668.829.725.500.600.500 - neurofibroma, plexiform MeSH ...
... neurilemmoma, endometrioma, glomus tumor and granular cell tumor; the mnemonic "BLEND-AN-EGG" may be helpful). Other skin ...
Neurilemmoma/Schwannoma *Acoustic neuroma. *Malignant peripheral nerve sheath tumor. Note: Not all brain tumors are of nervous ...
Neurilemmoma/Schwannoma *Acoustic neuroma. *Malignant peripheral nerve sheath tumor. Note: Not all brain tumors are of nervous ...
神經鞘瘤(英语:Neurilemmoma) *聲神經瘤(英语:Vestibular schwannoma) ...
A neurilemmoma is a benign, usually encapsulated neoplasm derived from Schwann cells and, along with neurofibroma, constitutes ... encoded search term (Dermatologic Manifestations of Neurilemmoma (Schwannoma)) and Dermatologic Manifestations of Neurilemmoma ... Dermatologic Manifestations of Neurilemmoma (Schwannoma). Updated: Dec 15, 2017 * Author: Kara Melissa T Torres, MD, DPDS; ... In melanotic neurilemmoma, the age range was reported at 10-84 years, with a mean age of 37 years. Overall, approximately 75% ...
... two distinct regions of a neurilemmoma are recognized. Antoni A regions are areas that contain a large number of cells, chiefly ... Neurilemmoma at 10x Magnification. Histologically, two distinct regions of a neurilemmoma are recognized. Antoni A regions are ...
The cause of neurilemmoma growth is unknown, but the tumors are occasionally associated with von Recklinghausen disease. ... On average, it takes five years for a diagnosis of neurilemmoma to be confirmed after initial symptoms appear. ... Neurilemmoma at 20x Magnification. Neurilemmomas are benign tumors that originate in the Schwann cells that comprise nerve ... The cause of neurilemmoma growth is unknown, but the tumors are occasionally associated with von Recklinghausen disease. ...
... neurilemmoma explanation free. What is neurilemmoma? Meaning of neurilemmoma medical term. What does neurilemmoma mean? ... Looking for online definition of neurilemmoma in the Medical Dictionary? ... neurilemmoma. Also found in: Dictionary, Encyclopedia.. Related to neurilemmoma: neurofibroma, schwannoma. neurilemmoma. See ... Synonym(s): neurilemmoma. neurilemmoma. a tumor of a peripheral nerve sheath (neurilemma); called also schwannoma. Occur as ...
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Centers RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.. ...
Cervical Vagus Nerve Neurilemmoma Mimicking Parathyroid Adenoma Neurilemoma del nervio vago cervical simulando adenoma de ...
Physician assistants and nurse practitioners use Clinical Advisor for updated medical guidance to diagnose and treat common medical conditions in daily practice.
Ancient neurilemmoma is a cellular form of ordinary neurilemmoma, showing nuclear polymorphism and hyperchromasia. The majority ... Ancient neurilemmoma is a cellular form of ordinary neurilemmoma, showing nuclear polymorphism and hyperchromasia. The majority ... Calcification in benign schwannomas is rare, it is seen with greater frequency in ancient neurilemmoma. If there is rib or ...
We encountered two cases of endobronchial neurilemmoma and in this context, reviewed 48 cases previously reported in Japan. ...
Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education. ...
Learn more about schwannoma in children. View Schwann cell tumor treatment options at Dana-Farber/Boston Childrens, a leader in pediatric cancer care.
Neurilemmoma of the ciliary body. / Midena, E.. In: British Journal of Ophthalmology, Vol. 68, No. 4, 04.1984, p. 289.. ... Midena, E. / Neurilemmoma of the ciliary body. In: British Journal of Ophthalmology. 1984 ; Vol. 68, No. 4. pp. 289. ... Midena, E 1984, Neurilemmoma of the ciliary body., British Journal of Ophthalmology, vol. 68, no. 4, pp. 289. ... Midena, E. (1984). Neurilemmoma of the ciliary body. British Journal of Ophthalmology, 68(4), 289. ...
Wagner-Meissner neurilemmoma of the vulva. In: International Journal of Dermatology. 2003 ; Vol. 42, No. 7. pp. 550-551. ... Ferrara N, Di Marino M, Rossiello L, Baldi A. Wagner-Meissner neurilemmoma of the vulva. International Journal of Dermatology. ... title = "Wagner-Meissner neurilemmoma of the vulva",. author = "Nicola Ferrara and {Di Marino}, Mariapia and Luigi Rossiello ... Wagner-Meissner neurilemmoma of the vulva. / Ferrara, Nicola; Di Marino, Mariapia; Rossiello, Luigi; Baldi, Alfonso. ...
신경초종(neurilemmoma)은 신경집 세포에서 기원하는 양성종양으로 위장관에서는 위에서 가장 높은 빈도로 발생하나 전체 위 종양의 0.2%를 차지하는 매우 휘귀한 질환이다. 대부분 무증상이지만 간혹 복통, 복부 불쾌감, ... Neurilemmoma is a benign, slow-growing neoplasm originating in any nerve that has a Schwann cell sheath. They rarely occur in ... Because gastric neurilemmoma are usually covered by intact mucosa and mainly involve the submucosal and muscularis propria, ... The neurilemmoma of the stomach: a case report. J Korean Surg Soc 1992;42:862-866. ...
Sublingual neurilemmoma. Journal of the Indian Medical Association. 1975 May; 64(9): 238-40. ...
When the neurilemmoma appears in the oral cavity, this lesion is most frequently found in the tongue5, particularly in ... Neurilemmoma or Schwanoma is a rare, benign, neurogenic, encapsulated and slow growing tumor. It originates from Schwann cells ... Although the neurilemmoma does not present specific clinical characteristics, and is similar to other lesions such as fibroma ... In this article, a rare case of neurilemmoma located in the jugal mucosa of a child only 9 years old is reported. ...
SANTOS, Pedro Paulo de Andrade et al. Neurilemmoma of the oral cavity in pediatric patient. RGO, Rev. gaúch. odontol. (Online) ... The present report shows the case of neurilemmoma in bucal mucosa, in a 9-year-old child. Patient was referred to the ... Patient was submitted to excisional biopsy, with histopathological exam showing diagnosis of neurilemmoma. After 1 year follow- ...
Neurilemmoma; Vestibular Schwannoma). En Español (Spanish Version). Definition. Reasons for Procedure. Possible Complications ...
Index: IMEMR (Eastern Mediterranean) Main subject: Surveys and Questionnaires / Neurilemmoma Type of study: Case report Limits: ... Index: IMEMR (Eastern Mediterranean) Main subject: Surveys and Questionnaires / Neurilemmoma Type of study: Case report Limits: ...
Neurilemmoma / diagnosis. Neurilemmoma / physiopathology. Neurilemmoma / surgery. Neurofibroma / diagnosis. Neurofibroma / ... Neurilemmoma / diagnosis. Neurilemmoma / surgery. Temporal Bone. *[Email] Email this result item Email the results to the ... Neurilemmoma / pathology. Neurilemmoma / radiography. Skull Neoplasms / pathology. Skull Neoplasms / radiography. *[Email] ... Title] Intraosseous neurilemmoma of L2 vertebra--a case report.. *Intraosseous neurilemmoma (schwannoma) is a rare bone tumor ...
Neurilemmomaadmin2013-04-29T11:24:53-04:00 Neurilemmoma. A Schwannoma also known as a neurilemmoma, neurinoma,a neurolemmoma, ...
NEURILEMMOMA OF THE FACIAL NERVE. CONLEY, JOHN; JANECKA, IVO CONLEY, JOHN; JANECKA, IVO Less ...
NEURILEMMOMA (SCHWANNOMA) OF THE HYPOGLOSSAL NERVE. LANE, STANLEY L. LANE, STANLEY L. Less ...
Index: IMEMR (Eastern Mediterranean) Main subject: Spinal Cord / Spinal Cord Neoplasms / Myelography / Neurilemmoma Type of ... Index: IMEMR (Eastern Mediterranean) Main subject: Spinal Cord / Spinal Cord Neoplasms / Myelography / Neurilemmoma Type of ... Humans , Female , Neurilemmoma/diagnosis , Spinal Cord Neoplasms , Myelography/methods , Spinal Cord/surgery ...
Schwannoma (Neurilemmoma) As Parotid Tumor - A Rare Presentation. J Singh, P Garg, S Verma, S Aggarwal, A Narang, V Rathee, K ... Schwannoma (Neurilemmoma) As Parotid Tumor - A Rare Presentation. The Internet Journal of Otorhinolaryngology. 2013 Volume 15 ... has a limited value in diagnosis of neurilemmoma in parotid region, as was seen in our case. Hence this case is been reported ... 6.Most authors find it difficult to establish a correct preoperative diagnosis of facial nerve neurilemmoma6,7. Conley and ...
Neurilemmoma. D009442. EFO:0000760. malignant peripheral nerve sheath tumor. 2. ClinicalTrials. Scleroderma, Localized. D012594 ...
also-called,Acoustic neurilemmoma,/also-called, ,also-called,Acoustic neurinoma,/also-called, ...
Neurilemmoma, also known as schwannoma, are benign tumors of the nerve sheath arising from proliferation of perineural schwann ... Intraosseous Schwannoma (Neurilemmoma): An Unusual Anterior Maxillary Swelling: A Case Report and Review of Literature. Balram ... Neurilemmoma, also known as schwannoma, are benign tumors of the nerve sheath arising from proliferation of perineural schwann ... Citation: Garg B, Batra J, Chavda R, Attresh G, Agrawal M (2015) Intraosseous Schwannoma (Neurilemmoma): An Unusual Anterior ...
Neurilemmoma. Neuroma. Neuroma, Acoustic. Neurofibromatosis 2. Neoplasms, Nerve Tissue. Neoplasms by Histologic Type. Neoplasms ...
  • The synonym schwannoma is often used interchangeably with neurilemmoma. (medscape.com)
  • 3] Any nerve which have a schwann cell sheath may give origin to a Schwannoma or Neurilemmoma and so, this neoplasm may develop in almost any part of the body. (thefreedictionary.com)
  • Malignant peripheral nerve sheath tumor (MPNST) was previouslyknown as malignant schwannoma, neurogenic sarcoma, malignant neurilemmoma , and neurofibrosarcoma. (thefreedictionary.com)
  • MPNST also known as neurogenic sarcoma/malignant neurilemmoma /malignant schwannoma. (thefreedictionary.com)
  • Bone, right distal Osteochondroma with no definitive femur evidence of malignancy Skin, face, biopsy Sebaceous carcinoma Bone, left humerus Osteosarcoma, well differentiated Bone, mandible Low-grade chondromyxoid tumor Brain, septal lesion Recurrent medulloblastoma Soft tissue, left arm Neurilemmoma (schwannoma) Brain, posterior Oligodendroglioma cranial fossa Thyroid gland Follicular carcinoma? (thefreedictionary.com)
  • A Schwannoma also known as a neurilemmoma, neurinoma,a neurolemmoma, Schwann cell tumor or nerve sheath tumor are composed of Schwann cells, which normally produce the insulating myelin sheath covering peripheral nerves. (thehandtreatmentcenter.com)
  • Intraparotid schwannoma presents as a slowly growing non-tender parotid swelling without facial weakness (80%) 6 .Most authors find it difficult to establish a correct preoperative diagnosis of facial nerve neurilemmoma 6,7 . (ispub.com)
  • Garg B, Batra J, Chavda R, Attresh G, Agrawal M (2015) Intraosseous Schwannoma (Neurilemmoma): An Unusual Anterior Maxillary Swelling: A Case Report and Review of Literature. (scitechnol.com)
  • Neurilemmoma, also known as schwannoma, are benign tumors of the nerve sheath arising from proliferation of perineural schwann cells. (scitechnol.com)
  • By convention the benign schwannoma is preferably known as neurilemmoma and the true or malignant schwannoma is designated simply as schwannoma. (biology-online.org)
  • Schwannoma, also referred to as neurilemmoma, is a benign tumor of peripheral nerve arising from Schwann cells that form the neural sheath. (omicsonline.org)
  • An acoustic neuroma is also known as a schwannoma, vestibular schwannoma, or neurilemmoma. (itsjustbenign.com)
  • Neurilemmoma (Schwannoma) Composed of spindle cells Often have S-shaped nuclei Cells lie within a. (picsearch.com)
  • Schwannoma (Neurilemmoma) are benign tumours of the nerve sheath, which are cells and tissues covering the nerves. (aku.edu)
  • A neurilemmoma is a benign, usually encapsulated neoplasm derived from Schwann cells and, along with neurofibroma, constitutes one of the 2 most common benign peripheral nerve sheath tumors. (medscape.com)
  • MPNSTs are spindle-cell sarcomas that arise from nerve, neurofibroma, neurilemmoma , or tissue containing nerves. (thefreedictionary.com)
  • Neurog n: neurofibroma, neurilemmoma. (vitalitas.hu)
  • These are most often retromandibular parotid tumors or neurogenic tumors (eg, neurilemmoma, neurofibroma, or paraganglioma). (health.am)
  • Neurofibroma is characterized by a much greater production of collagen than is neurilemmoma, and it, too, may occur as an isolated lesion. (brainscape.com)
  • The presence of a noninvasive tumor next to a peripheral nerve suggests the diagnosis of neurilemmoma. (medscape.com)
  • Because gastric neurilemmoma are usually covered by intact mucosa and mainly involve the submucosal and muscularis propria, they are categorized as gastric submucosal tumor. (clinicalultrasound.org)
  • Author report a case of gastric neurilemmoma presenting as a gastric submucosal tumor in a 65-year-old male patient. (clinicalultrasound.org)
  • Reports a case of neurilemmoma, a benign, slow-growing and encapsulated tumor, originating from the hypoglossal nerve in the floor of the mouth. (ebscohost.com)
  • Neurilemmoma, also called schwanomma, neurinoma, and perineural fibroblastoma is a rare benign tumor originated from the schwann cell of nerve sheath. (koreamed.org)
  • Previous designations for schwannomas include neurinoma and neurilemmoma. (wikipedia.org)
  • The cause of neurilemmoma growth is unknown, but the tumors are occasionally associated with von Recklinghausen disease. (microscopyu.com)
  • Calcification in benign schwannomas is rare, it is seen with greater frequency in ancient neurilemmoma. (radiopaedia.org)
  • On average, it takes five years for a diagnosis of neurilemmoma to be confirmed after initial symptoms appear. (microscopyu.com)
  • Patient was submitted to excisional biopsy, with histopathological exam showing diagnosis of neurilemmoma. (bvsalud.org)
  • Very few originate from facial nerve and in majority of these cases they arise from its intratemporal branch 3- 5 .Preoperative diagnosis of neurilemmoma is difficult. (ispub.com)
  • Fine needle aspiration cytology although has high specificity for parotid swellings, has a limited value in diagnosis of neurilemmoma in parotid region, as was seen in our case. (ispub.com)
  • There was a family history or other signs of systemic neurofibromatosis in one-quarter of those with solitary neurofibromas, but in none of the patients with neurilemmoma. (nature.com)
  • An understanding of the relationship of the Schwann cell to other neuronal elements in the peripheral nervous system is helpful in conceptualizing the pathophysiology of a neurilemmoma. (medscape.com)
  • Neurilemmoma is a benign, slow-growing neoplasm originating in any nerve that has a Schwann cell sheath. (clinicalultrasound.org)
  • Neurilemmoma Originating from the Hypoglossal Nerve in the Floor of the Mouth. (ebscohost.com)
  • if the nerve is large, the neurilemmoma may develop within the sheath of the nerve, the fibers of which may then spread over the surface of the capsule as the neoplasm enlarges. (thefreedictionary.com)
  • Histopathological examination revealed Neurilemmoma. (ispub.com)
  • Neurilemmoma of Retromolar Region in the Oral Cavity. (thefreedictionary.com)
  • When the neurilemmoma appears in the oral cavity, this lesion is most frequently found in the tongue 5 , particularly in individuals in the second through to the fourth decades of life 6-7 . (bvsalud.org)
  • Mortada A : Solitary orbital malignant neurilemmoma. (nature.com)
  • The present report shows the case of neurilemmoma in bucal mucosa, in a 9-year-old child. (bvsalud.org)
  • In this article, a rare case of neurilemmoma located in the jugal mucosa of a child only 9 years old is reported. (bvsalud.org)
  • Grinberg MA and Levy NS : Malignant neurilemmoma of the supraorbital nerve. (nature.com)
  • Ancient neurilemmoma is a cellular form of ordinary neurilemmoma , showing nuclear polymorphism and hyperchromasia. (radiopaedia.org)