• Malignant vascular tumors of bone occur less frequently than hemangiomas. (basicmedicalkey.com)
  • As stated above, these lesions should not be confused with paragangliomas, which were formerly also called glomus tumors in now-antiquated clinical usage. (wikipedia.org)
  • Glomus tumors are usually solitary and small lesions. (wikipedia.org)
  • Solitary glomus tumors, particularly subungual lesions, are more common in females than in males. (wikipedia.org)
  • however, the true incidence of glomus tumors is unknown, likely as a result of misdiagnosis of many of these lesions as hemangiomas or venous malformations. (medscape.com)
  • Vascular lesions in the hand may be secondary to local pathology (e.g. tumour, malformation, trauma, iatrogenic cause, or drug injection), a proximal source of emboli (e.g. dissections or aneurysms), or systemic diseases with vascular compromise (e.g. rheumatic and vaso-occlusive diseases). (springer.com)
  • Glomus tumors are rare, benign, soft-tissue lesions, usually occurring in the hand, but they can occur in other regions of the body, such as the thigh. (amjcaserep.com)
  • Glomus tumors are rare, benign, soft-tissue lesions, representing around 1% to 2% of all soft-tissue tumors. (amjcaserep.com)
  • The imaging features of the most common benign and malignant lesions of the fingers are presented. (micinfo.com)
  • Although glomus tumors usually appear as solitary lesions at 1 site, multiple lesions at multiple sites are not uncommon (see the image below). (naqlafshk.com)
  • The difficulty in managing patients with such lesions is that the tumor originates from within the GI tract wall and often appears as a mass beneath otherwise normal mucosa. (clinicalgate.com)
  • The classification of malignant vascular lesions is still in a state of flux, and controversy continues about the biologic potential of those tumors currently designated as low-grade or borderline endothelial tumors. (basicmedicalkey.com)
  • Other nail unit tumors included squamous cell carcinoma, melanoma, basal cell carcinoma. (drseanreyes.com)
  • Surgical excision is the preferred treatment for benign glomus tumors. (wikipedia.org)
  • Glomus tumor, Knee, excision biopsy. (jbstjournal.com)
  • Once the patient was fit for Surgery, wide excision of tumor and reconstruction with ipsilateral non-vascularised proximal fibula was performed. (jbstjournal.com)
  • Juxta-articular giant cell tumors of the lower end radius are common and present a special problem of reconstruction after tumor excision. (jbstjournal.com)
  • Complete excision of the tumor offers the best chance of cure but sacrifices the articular surface and presents complex reconstructive problems. (jbstjournal.com)
  • [ 3 , 4 ] Glomus tumors most frequently occur in areas with high concentrations of glomus bodies, including subungual regions of the fingers and the deep dermis of the hand (palm), forearm, and foot (sole). (medscape.com)
  • While glomus tumors predominate on the hands and fingers, these tumors can occur in a wide anatomic distribution, including sites not known to contain glomus cells, such as deep soft tissues, nerve, bone, and abdominal viscera. (medscape.com)
  • about one third of the cases of multiple tumors occur in those younger than 20 years. (wikipedia.org)
  • Interestingly, while glomus tumors predominate on the hands and fingers especially, these tumors can occur in a wide anatomic distribution, to include sites not known to contain glomus cells. (medscape.com)
  • These disseminated variants of glomus tumor, known as glomangiomas or glomuvenous malformations, differ clinically from glomus tumors in that they occur more often in children and adolescents, are typically multifocal, and do not have a predilection for subungual sites. (medscape.com)
  • Solitary glomus tumors can occur at any age, but they are most frequent in young adults. (medscape.com)
  • Most glomus tumors occur in the hand, especially in the subungual region, as it is rich in blood vessels. (amjcaserep.com)
  • Glomus tumors can occur in other regions of the body, and this is considered a very rare situation. (amjcaserep.com)
  • Glomus tumors can rarely occur in unusual locations. (jbstjournal.com)
  • Carotid body glomus tumors, also called carotid body tumors, occur at the bifurcation of the common carotid artery and arise from the tissue of the normal carotid body (see the image below). (naqlafshk.com)
  • Histological diagnosis of EUS-FNA showed 47 (52%) malignant SELs (44 GISTs, 1 glomus tumor, 1 SEL like cancer, and 1 malignant lymphoma), 19 (21%) benign SELs (14 leiomyomas, 4 ectopic pancreas, and 1 neurinoma), and 24 (27%) indeterminate SELs. (jgld.ro)
  • After surgery, there was no recurrence of malignant SELs. (jgld.ro)
  • One year following her surgery, she presented to our office with recurrence of the tumor. (faoj.org)
  • Giant cell tumor (GCT) of bone is a benign but locally aggressive tumor with tendency for local recurrence [2]. (jbstjournal.com)
  • Goals of treatment are to achieve satisfactory removal of the tumor, lessen the chance of local recurrence and to preserve as much wrist function as possible. (jbstjournal.com)
  • Their behavior ranges from that of indolent, low-grade tumors, such as epithelioid hemangioendothelioma, to that of lethal, high-grade angiosarcomas or hemangiopericytomas. (basicmedicalkey.com)
  • 3,4] Most tumors are found in patients younger than 20 years of age. (faoj.org)
  • Inflammatory Myofibroblastic Tumor, Upper Gastro-Intestinal Tract. (booksdo.com)
  • Glomus tumors do not arise from glomus cells, but paragangliomas do. (wikipedia.org)
  • Paragangliomas tumors (sometimes referred to as glomus, as glomus cells are the place of origin) are a typically benign abnormal cell growth. (knowcancer.com)
  • Imaging is the primary investigative modality for glomus tumors of the head and neck (paragangliomas). (naqlafshk.com)
  • Paragangliomas (PGLs) are rare neuroendocrine tumors that carry the highest degree of heritability among human neoplasms. (medscape.com)
  • Head and neck paragangliomas (HNPGLs) emerge from the parasympathetic nervous systemand are usually benign, slow-growing tumors. (medscape.com)
  • When such tumors arise outside of the adrenal gland, they are termed extra-adrenal pheochromocytomas, or paragangliomas. (medscape.com)
  • Glomus Tumors are rare benign tumors of the glomus body, often occurring in the subungual region. (orthobullets.com)
  • Criteria for the diagnosis of malignancy in glomus tumors are: Tumor size of more than 2 centimeters and subfascial or visceral location. (wikipedia.org)
  • A combination of contrast-enhanced computed tomography (CT) scanning, magnetic resonance imaging (MRI), and angiography is ideal for proper diagnosis and localization of the tumors. (naqlafshk.com)
  • The etiology, diagnosis and treatment options of this tumor are discussed. (faoj.org)
  • Tumor Chart - Summary table of the seven questions to ask, differential diagnosis and important information about each tumor. (orthopaedicsone.com)
  • As a result, cells from the tumor must be biopsied (excised) and studied under a microscope for an accurate diagnosis. (knowcancer.com)
  • Based on our experiences and literature data, this method should be considered as a preliminary diagnosis of patients with chest wall tumors. (jultrason.pl)
  • While the vast majority of glomus tumors are benign, malignant cases have been rarely reported, with such cases typically being locally invasive. (medscape.com)
  • Rarely, glomus tumors can undergo malignant transformation or malignant glomus tumors can arise de novo. (medscape.com)
  • Rarely, glomus tumours may have a malignant potential [3]. (jbstjournal.com)
  • 4] Osteochondromas rarely become malignant and mitotic figures are rarely identified microscopically. (faoj.org)
  • Nail plate can be elevated laterally by the tumor, but is rarely injured. (teachmeorthopedics.info)
  • [ 10 ] SDH- associated syndromes are characterized by the development of PGLs, with an additional risk for developing other tumor types [ e.g. , clear cell renal cancer (RCC), gastrointestinal stromal tumors (GISTs), and, more rarely, neuroendocrine tumors and pituitary adenomas]. (medscape.com)
  • Glomangioma (20% of cases): Tumors with a prominent vascular component. (wikipedia.org)
  • A glomus tumour (glomangioma, tumors of Popoff, or BarrĂ©-Masson syndrome) is a benign mesenchymal neoplasm composed of cells which resemble the modified smooth muscle cells of the normal glomus body (glomocytes) [1]. (jbstjournal.com)
  • 2] Glomus tumor or glomangioma is a common benign tumor of the fingers and toes that manifest under the nail. (faoj.org)
  • We report the imaging findings in a relatively large series of schwannomas of the jugular foramen, contrasting them with other disease entities, especially vestibular schwannomas and tumors of the glomus jugulare. (ajnr.org)
  • Glomus jugulare tumor. (naqlafshk.com)
  • About 80% of all glomus tumors are carotid body tumors or glomus jugulare tumors. (naqlafshk.com)
  • Common locations for extra-adrenal pheochromocytomas include the organ of Zuckerkandl (close to the origin of the inferior mesenteric artery), bladder wall, heart, mediastinum, and carotid and glomus jugulare bodies. (medscape.com)
  • Osteochondroma is the most common benign bone tumor of the foot. (faoj.org)
  • Osteochondromas are small, benign, bone neoplasms and are the most common bone tumor of the foot. (faoj.org)
  • Giant cell tumor is a benign bone tumor, locally aggressive with low malignant potential. (jbstjournal.com)
  • There is no evidence of postoperative metastasis of gastric gastrointestinal stromal tumors (GISTs) smaller than 2 cm. (jgld.ro)
  • C-Kit (CD117), Gastrointestinal Stromal Tumors (GISTs). (booksdo.com)
  • Giant cell tumors (GCT) of the bone are aggressive and are recognised for variable clinical behaviour, which is not always related to radiographic or histological appearance [1]. (jbstjournal.com)
  • About 130 patients with neurogenic tumors of the jugular foramen without associated neurofibromatosis have been reported. (ajnr.org)
  • In this paper, we briefly discuss malformations of blood and lymphatic vessels, glomus tumor as well as neurogenic tumors originating in the thoracic branches of the spinal nerves and the autonomic visceral system. (jultrason.pl)
  • Cancerous glomus tumors are exceedingly rare. (wikipedia.org)
  • Pericytes of Zimmerman Cancerous glomus tumors have been subdivided into three categories based on their histologic appearance: locally infiltrative glomus tumors (LIGT), glomangiosarcomas arising in benign glomus tumors (GABG), and glomangiosarcomas arising de novo (GADN). (wikipedia.org)
  • Brain tumors can be cancerous (malignant) or noncancerous (benign). (iraniansurgery.com)
  • less than 5% of these tumors are malignant (cancerous). (knowcancer.com)
  • It is thought that GVMs and glomus tumors have different etiologies, with GVMs resembling venous malformations and containing more dilated venous channels than glomus tumors. (medscape.com)
  • The multiple variant of glomus tumor - generalized glomuvenous malformations, or multiple glomangiomas - is much less common, accounting for less than 10% of all reported cases. (medscape.com)
  • multiple tumors-classically seen as glomuvenous malformations-arise in younger patients and tend to be asymptomatic. (medscape.com)
  • The dysfunctions and malformations of these systems contribute to the pathogenesis of many human diseases and frequently give rise to tumors and tumorlike malformations in the skin, soft tissue, and viscera. (basicmedicalkey.com)
  • Glomus tumors are rare soft-tissue neoplasms of the neuromyoarterial glomus body that account for approximately 2% of all soft-tissue tumors in the extremities. (medscape.com)
  • Glomus tumors are rare soft tissue neoplasms that typically present in adults (ages 20-40 years) as small, blue-red papules or nodules of the distal extremities, with most cases involving subungual sites. (medscape.com)
  • They are highly vascular, locally invasive, slow-growing tumors that frequently involve critical neurovascular structures. (naqlafshk.com)
  • Histologically, glomus tumors are made up of an afferent arteriole, anastomotic vessel, and collecting venule. (wikipedia.org)
  • When the origin could be identified, almost all these tumors were histologically proved to be schwannomas of the glossopharyngeal nerve. (ajnr.org)
  • Histologically GT arises from glomus bodies that are specialised form of arteriovenous anastomosis involved in temperature regulation. (jbstjournal.com)
  • Histologically, GT are divided into 3 subtypes: The classical glomus tumour, glomangiomas and glomangiomyomas, the last being least common. (jbstjournal.com)
  • Brain tumors are categorized as primary or secondary. (iraniansurgery.com)
  • Many primary brain tumors are benign. (iraniansurgery.com)
  • Symptoms of brain tumors depend on the location and size of the tumor. (iraniansurgery.com)
  • Risk for most types of brain tumors increases with age. (iraniansurgery.com)
  • Brain tumors in general are more common among Caucasians. (iraniansurgery.com)
  • People who have been exposed to ionizing radiation have an increased risk of brain tumors. (iraniansurgery.com)
  • Magnetic resonance imaging (MRI) is commonly used to help diagnose brain tumors. (iraniansurgery.com)
  • Meet the increasing need for effective brain tumor management with the highly anticipated revision of Brain Tumors by Drs. Andrew H. Kaye and Edward R. Laws. (bookbaz.ir)
  • Soft tissue sarcoma is a disease in which malignant (cancer) cells form in the soft tissues of the body. (dana-farber.org)
  • Ewing sarcoma includes several types of bone tumors. (dana-farber.org)
  • Ewing sarcoma tumors usually form in the hip bones, the ribs, or in the middle of long bones. (dana-farber.org)
  • Malignant transformation to osteogenic sarcoma has also been reported, but not in solitary, subungual osteochondromas. (faoj.org)
  • Glomus tumors are thought to represent hamartomatous proliferations of modified smooth muscle cells originating from preexisting normal glomus cell populations. (medscape.com)
  • Data from Berman JJ, O'Leary TH: Gastrointestinal stromal tumor workshop. (clinicalgate.com)
  • Endoscopic ultrasound (EUS) of malignant gastrointestinal stromal tumor (GIST) treated with imatinib methylate. (clinicalgate.com)
  • Gastrointestinal Stromal Tumor. (booksdo.com)
  • Tumors affecting the head and neck can cause pain, nerve paralysis, and even some hemorrhaging or inflammation. (knowcancer.com)
  • Haller introduced glomus tumors of the head and neck into the medical record in 1762 when he described a mass at the carotid bifurcation that had a glomus body-like structure. (naqlafshk.com)
  • Glomus tumors of the head and neck are associated with 4 primary locations, the jugular bulb, middle ear cavity, vagus nerve, and carotid body. (naqlafshk.com)
  • This is the most common type of glomus tumor of the head and neck. (naqlafshk.com)
  • Although glomus tympanicum tumors are the most common primary neoplasms of the middle ear, these tumors are the rarest of head and neck glomus tumors. (naqlafshk.com)
  • Schwannomas of the head and neck are relatively rare tumors. (ispub.com)
  • A primary brain tumor originates in your brain. (iraniansurgery.com)
  • Sertoli-Lydig cell tumors (SLCTs), also known as androblastoma or arrhenoblastoma , are a type of sex cord-stromal tumor that originates in the ovaries. (knowcancer.com)
  • [ 11 ] These tumors may arise from perivascular cells or pluripotent mesenchymal cells capable of differentiating into glomus cells. (medscape.com)
  • Data from Lewin K, Riddel RH, Weinstein WM: Mesenchymal tumors. (clinicalgate.com)
  • The goal of treatment of this tumor at the distal radius is complete removal of the tumor and reconstruction of the bone defect in order to preserve maximum function of the wrist joint. (jbstjournal.com)
  • After the removal of the tumor, normal menses should reappear within four weeks. (knowcancer.com)
  • Surgical findings showed schwannomas of the glossopharyngeal nerve in seven patients and tumor involvement of both the glossopharyngeal and vagal nerves in one patient. (ajnr.org)
  • Surgical aspects of subungual malignant melanomas. (wheelessonline.com)
  • Desmoid fibromatosis, which is considered to be a benign lesion with local aggressivity and recurrences after surgical resection, represents an interesting tumor form the clinical point of view. (jultrason.pl)
  • The tumor is malignant in 10% of cases but may be cured completely by surgical removal. (medscape.com)
  • Surgical resection of the tumor is the treatment of choice and usually cures the hypertension. (medscape.com)
  • Cervical ultrasonography showed a jugular paraganglioma 35 x 21 mm, developed at the expense of the jugular vein and corresponding either to a glomus tumor or to a chemodectome. (ispub.com)
  • Carotid body tumor. (naqlafshk.com)
  • Neck nerve tumors have been known since 1742 thanks to the discovery of carotid corpuscle by Haller. (ispub.com)
  • Clusters of tumor cells (type I cells interspersed with type II cells), called zellballen, are surrounded by a dense network of capillary caliber blood vessels. (naqlafshk.com)
  • This large tumor initially measured 21 mm by 37 mm (main image) and decreased to 7 mm by 17 mm (inset) after 11 months of treatment. (clinicalgate.com)
  • Among the features that suggest a malignant course are large tumor size and an abnormal DNA ploidy pattern (aneuploidy, tetraploidy). (medscape.com)
  • The glomus body is composed of an afferent arteriole, anastomotic vessel (termed Sucquet-Hoyer canal), primary collecting vein, intraglomerular reticulum, and a capsular portion. (medscape.com)
  • It consists of the afferent arteriole and efferent venule, glomus cells, smooth muscle cells, and non and myelinated nerves. (drseanreyes.com)
  • There is one report of widespread metastases of a malignant glomus tumor involving the skin, lungs, jejunum, liver, spleen, and lymph nodes. (wikipedia.org)
  • Another report of a malignant glomus tumor (glomangiosarcoma) with metastases from the skin. (wikipedia.org)
  • A glomus tumor (also known as a "solitary glomus tumor") is a rare neoplasm arising from the glomus body and mainly found under the nail, on the fingertip or in the foot. (wikipedia.org)
  • Glomus tumors are areteriovenous anastomoses mostly found on flexor surfaces of fingers and nail beds. (jbstjournal.com)
  • It is termed 'Exostosis Cartilaginea' because of its distinctive cartilaginous cap as the tumor protrudes through the nail bed. (faoj.org)
  • 2] As a subungual tumor, the lesion usually protrudes up through the soft nail bed and appears as firm, slightly lobulated, marble-like or sometimes translucent cartilaginous bone that causes onycholysis of the nail plate. (faoj.org)
  • There are many nail unit tumors. (drseanreyes.com)
  • A glomus tumor is a small red or bluish spot visible through the nail plate. (drseanreyes.com)
  • While once considered a subset of glomus tumors, GVMs are now widely considered to be unrelated in pathogenesis given their differences in clinical and histopathologic features. (medscape.com)
  • Glomus tumors were first described by Hoyer in 1877 while the first complete clinical description was given by Masson in 1924. (wikipedia.org)
  • The usual clinical presentations consist of pain, tenderness at the site of the tumor, and hypersensitivity to cold. (amjcaserep.com)
  • In fact, gastric glomus tumors account for approximately 2% of benign gastric tumors. (medscape.com)
  • In rare cases, the tumors may present in other body areas, such as the gastric antrum or glans penis. (wikipedia.org)
  • or = 10%) MIB-1 proliferative index correlates with poor outcome in gastric stromal tumor patients: A study of 35 cases. (clinicalgate.com)
  • Glomus tumors are thought to arise from the glomus body or Sucquet-Hoyer canal, a thermoregulatory arteriovenous shunt composed of modified smooth muscle cells. (medscape.com)
  • Glomus tumors are thought to arise from the glomus body, a thermoregulatory shunt concentrated in the fingers and toes. (medscape.com)
  • One explanation for this finding is that these tumors may arise from perivascular cells that can differentiate into glomus cells. (medscape.com)
  • they arise from the glomus bodies that run with the tympanic branch of the glossopharyngeal nerve. (naqlafshk.com)
  • These tumors are characteristically painful, often causing paroxysmal pain in response to temperature changes (especially cold) or pressure. (medscape.com)
  • Multiple tumors are less likely to be painful. (wikipedia.org)
  • A vagal cervical schwannoma is rare and generally benign tumor developed exclusively from the nerve schwannoma cells [1]. (ispub.com)
  • By histopathology, glomus tumors can be termed as follows: Solid glomus tumor (75% of cases): Consisting predominantly of glomus cells, with poor vasculature and rare smooth muscle cells. (wikipedia.org)
  • The potential for malignant transformation occurs more often in the hereditary disorder called hereditary multiple cartilaginous exostoses. (faoj.org)
  • Malignant glomus tumors, or glomangiosarcomas, are extremely rare and usually represent a locally infiltrative malignancy. (wikipedia.org)
  • Glomus bodies play an important role in thermoregulation via arteriovenous shunting. (medscape.com)
  • Glomus cell populations are specialized arteriovenous anastomoses found most often in the fingers and are characterized by Sucquet-Hoyer canals, which play an important role in thermoregulation. (medscape.com)
  • The glomus body is a specialised form of arteriovenous anastomosis localised in the dermal soft tissue and acts as a thermoregulator. (jbstjournal.com)
  • Non-Vascularised Ipsilateral Fibular strut - A Modality to Treat Giant cell tumor of lower end radius using Anterior Approach. (jbstjournal.com)
  • Schwannoma of the jugular foramen is characteristically a sharply demarcated, contrast-enhancing tumor, typically centered on or based in an enlarged jugular foramen with sharply rounded bone borders and a sclerotic rim. (ajnr.org)
  • Since these tumors are typically benign and their growth is slow, outlook is generally very positive. (knowcancer.com)