• Carcinoma of the temporal bone is rare, accounting for fewer than 0.2% of all tumors of the head and neck. (medscape.com)
  • Malignant small round cell tumor is very rare, especially in the head and neck area. (ejao.org)
  • Dr. Kennedy's research interests include middle ear cholesteatoma, temporal bone fractures, head and neck tumors, head and neck infections, as well as urban and rural outcomes. (choa.org)
  • The Head & Neck Cancer Center combines the expertise of both UH Ear, Nose & Throat Institute and University Hospitals Seidman Cancer Hospital, a nationally recognized leader in the treatment of head and neck tumors. (uhhospitals.org)
  • Head and neck cancers we treat include cancers of the throat, thyroid and voice box, nasal tumors and skull base tumors. (uhhospitals.org)
  • Head and neck surgery may be necessary to remove a tumor or reconstruct an area after disfigurement from trauma or injury. (surgeryloans.com)
  • Baylor ENT (Otolaryngology) has nationally and internationally recognized surgeons who specialize in diagnosing, treating and rehabilitating cancers and tumors of the head and neck region, including those of the thyroid, skin, salivary glands, ears, sinuses, mouth, throat and voice box. (bcm.edu)
  • Overview of Head and Neck Tumors Head and neck cancer develops in almost 65,000 people in the United States each year. (msdmanuals.com)
  • Head and neck paragangliomas (HNPGLs) emerge from the parasympathetic nervous systemand are usually benign, slow-growing tumors. (medscape.com)
  • The most common type of primary cancer in the EAC is squamous cell carcinoma, and squamous cell carcinoma of the temporal bone may originate from the EAC or middle ear where chronic otorrhea and inflammation, cholesteatoma , or both may be associated risk factors. (medscape.com)
  • The investigators also determined that metastasis to the EAC and the middle ear/mastoid occurred more frequently with hematologic malignancies than with solid tumors. (medscape.com)
  • During the operation, we found a pale, grayish tumor occupying the mastoid and middle ear cavity ( Fig. 4 ). (ejao.org)
  • A glomus tympanum tumor is a tumor of the middle ear and bone behind the ear (mastoid). (medlineplus.gov)
  • En bloc resection of the ear canal with sparing of the facial nerve is done when lesions are limited to the canal and have not invaded the middle ear. (msdmanuals.com)
  • Nonchromaffin paragangliomas (chemodectomas) arise in the temporal bone from glomus bodies in the jugular bulb (glomus jugulare tumors) or the medial wall of the middle ear (glomus tympanicum tumors). (msdmanuals.com)
  • These tumors may arise from any location where meninges exist (eg, nasal cavity, paranasal sinuses, middle ear, mediastinum). (medscape.com)
  • Malignancies of the temporal bone arise most commonly from the pinna and lateral concha because these sites are likely to have undergone many years of sun exposure. (medscape.com)
  • In this study, we present two cases of early-stage carcinoma of the EAC treated by canal reconstruction using skin grafts after lateral temporal bone resection. (hindawi.com)
  • Lateral temporal bone resection with preservation of the stapes was performed. (hindawi.com)
  • Magnetic resonance imaging was ordered in preparation for tumor resection under general anesthesia. (isciii.es)
  • Various surgical approaches have been developed to maximize tumor resection while preserving important neurovascular structures. (medscape.com)
  • Deeper invasion requires a more significant temporal bone resection. (msdmanuals.com)
  • Resection of the temporal bone and postoperative radiation therapy are necessary. (msdmanuals.com)
  • You can also navigate to other sections of our website to learn more about specific types of skull base tumors, such as acoustic neuroma , meningioma , and pituitary tumors . (mskcc.org)
  • The temporal bones are situated at the sides and base of the skull, and lateral to the temporal lobes of the cerebral cortex. (wikipedia.org)
  • Gubbels SP, Hartl RB, Crowson MG, Jenkns HA, Marsh M. Temporal bone neoplasms and lateral cranial base surgery. (medlineplus.gov)
  • Temporal Bone Neoplasms and Lateral Cranial Base Surgery. (uiowa.edu)
  • Sphenoid wing meningiomas are categorized as lateral, middle, or medial (clinoidal), depending on the origin of the tumor along the sphenoid ridge. (medscape.com)
  • Dr. Sampath Chandra Prasad Rao delivered a panel discussion on Challenges with Lateral Skull Base Tumors: Cancer Temporal Bone & Paragangliomas at FHNO 21st Annual Conference. (beirc.net)
  • Glomus tumors have been associated with changes (mutations) in a gene responsible for the enzyme succinate dehydrogenase (SDHD). (medlineplus.gov)
  • Dall′Igna, C., Antunes, M.B. and Dall′Igna, D.P. (2005) Radiation Therapy for Glomus Tumors of the Temporal Bone. (scirp.org)
  • The temporal bone may also be a site for metastasis from lymphoma or malignant tumors of the breast, lung, kidney, or prostate. (medscape.com)
  • However, in cases that involve malignant tumors where the gland and nerve are both affected, a radical parotidectomy is performed. (pacificneuroscienceinstitute.org)
  • Radical parotidectomy is typically performed to remove malignant tumors that either arise in the parotid salivary gland or that metastasize to it. (pacificneuroscienceinstitute.org)
  • Metastatic malignant tumors of the temporal bone are relatively uncommon. (ejao.org)
  • and metastatic lesions to the temporal bone. (medscape.com)
  • Magnetic resonance (MR) imaging is a useful modality for imaging soft tissue lesions of the temporal bone. (medscape.com)
  • Various techniques can be used in MR imaging of temporal bone area lesions. (medscape.com)
  • The multicentric lesions can occur at different life stages not being necessarily simultaneous, a fact that prevents image exam research to be conclusive for tumor presence or absence. (scirp.org)
  • The pathophysiology of these tumors is different from other skin lesions because of their anatomical and functional characteristics. (hindawi.com)
  • The characteristic of these tumors are different from those of other skin lesions because of their pathogenesis and location. (hindawi.com)
  • In 1938, Cushing and Eisenhardt first used the term "meningioma" to describe these lesions and introduced it as a separate category of extraparenchymal tumors. (medscape.com)
  • On imaging study, temporal magnetic resonance imaging showed a partial fluid signal at the left mastoid air cells and abnormal enhancement at the left facial nerve around the genu area ( Fig. 1 ). (ejao.org)
  • The temporal bone consists of four parts- the squamous, mastoid, petrous and tympanic parts. (wikipedia.org)
  • Fused with the squamous and mastoid parts and between the sphenoid and occipital bones lies the petrous part, which is shaped like a pyramid. (wikipedia.org)
  • It separates occipital bone and mastoid portion of temporal bone. (wikipedia.org)
  • The temporal bone is ossified from eight centers, exclusive of those for the internal ear and the tympanic ossicles: one for the squama including the zygomatic process, one for the tympanic part, four for the petrous and mastoid parts, and two for the styloid process. (wikipedia.org)
  • b) Although no stenosis or bone exposure was observed, a wet mucosal membrane and the crust were shown in the opened mastoid cavity. (hindawi.com)
  • Post-operative healing and long-term stability after mastoid cavity reconstruction using the middle temporal artery and inferior musculoperiosteal flaps. (cgh.com.sg)
  • When a known cancer patient whose primary disease is controlled presents with otologic symptoms and a history of chronic mastoid infection, metastatic carcinoma of the temporal bone must be considered as an uncommon, but possible diagnosis. (ejao.org)
  • Here, we report a case of isolated distant metastasis of lung cancer to the mastoid portion of the temporal bone in a patient whose primary tumor had been treated. (ejao.org)
  • This revealed a diffuse, infiltrating soft tissue density lesion in the right mastoid bone. (ejao.org)
  • He also gave an academic lecture on 'Anatomy of the Temporal Bone', 'Translabyrinthine Approaches' and also did a live Surgical Demonstration of Transotic Approach for Petrous Bone Cholesteatoma, Transcochlear Approach for Skull Base Osteomyelitis, Sural Nerve grafting for Facial Nerve repair and Translabyrinthine Approach for Vestibular Schwannoma. (beirc.net)
  • A glomus tympanum tumor grows in the temporal bone of the skull, behind the eardrum (tympanic membrane). (medlineplus.gov)
  • in five patients, tumor extended below the skull base. (ajnr.org)
  • The Ear, Hearing & Balance Center, part of UH Ear, Nose & Throat Institute, provides expert care for disorders of the ear, skull base and temporal bone. (uhhospitals.org)
  • Our board-certified physicians have the skill and expertise to diagnose and treat acute and chronic nasal and sinus conditions, skull base tumors, as well as more complex issues. (uhhospitals.org)
  • If you have a skull base tumor, or are helping a loved one learn about skull base tumor treatment, you've come to the right place. (mskcc.org)
  • Memorial Sloan Kettering is a leading center for skull base tumor treatment. (mskcc.org)
  • Our highly trained skull base surgeons place a strong emphasis on completely removing the tumor while preserving quality of life. (mskcc.org)
  • We offer an array of highly refined approaches for treating skull base tumors. (mskcc.org)
  • The information here is meant to guide you through the basics about skull base tumors. (mskcc.org)
  • You may also wish to learn more about our Multidisciplinary Pituitary and Skull Base Tumor Center . (mskcc.org)
  • Both dogs presented with a space-occupying mass in which excisional surgery without the use of implants would have resulted in incomplete closure due to extensive bone defects of the skull. (thieme-connect.com)
  • Bone infiltration of the skull base (lamina cribosa and crista galli) was not evident. (isciii.es)
  • Aftercare and convalescence may take longer for complicated procedures such as advanced cancer and temporal-bone (two bones on both sides of the skull near the ear) surgery for nerve disorders (that can affect balance) or for tumors. (surgeryloans.com)
  • [ 9 ] Sphenoid wing meningiomas may be associated with hyperostosis of the sphenoid ridge and may be very invasive, spreading to the dura of the frontal, temporal, and orbital regions. (medscape.com)
  • Schwannomas of the jugular foramen, usually with origin from the ninth nerve, are rare, but the presenting symptoms may be similar to those of a vestibular schwannoma owing to mass effect by tumor growth in the posterior cranial fossa (2-4) . (ajnr.org)
  • A number of malignant and benign otic tumors occur, usually manifesting with hearing loss. (msdmanuals.com)
  • Excision is the treatment of choice for all benign otic tumors. (msdmanuals.com)
  • These tumors appear benign histologically and do not metastasize regionally or distantly but they are locally invasive and potentially destructive and should be excised widely. (msdmanuals.com)
  • Objective and Importance: Aneurysmal bone cysts (ABC) are benign bone neoplasms which typically involve the spine and long bones. (johnshopkins.edu)
  • In a retrospective study of 20 patients with temporal bone metastasis, Song et al reported that lung cancer was the most common primary malignancy, being found in 45% of the group. (medscape.com)
  • In addition, metastasis to the temporal bone tended to be a late event, subsequent to metastasis of the primary malignancy to other parts of the body. (medscape.com)
  • A case of solitary distant metastasis of lung cancer to the temporal bone presenting as acute unilateral facial palsy complicating preexisting chronic otomastoiditis is reported. (ejao.org)
  • Metastasis;Lung cancer;Temporal bone;Facial palsy. (ejao.org)
  • Symptoms of temporal bone metastasis include hearing loss, vertigo, facial nerve paralysis, and tinnitus. (ejao.org)
  • As a manifestation of distant metastasis of lung cancer to the temporal bone was considered a feasible etiology at this point, further evaluation was performed. (ejao.org)
  • Medial ethmoidal maxillectomy with orbital exenteration and reconstruction with temporal muscle flap was performed. (isciii.es)
  • They cause localized pressure effects on neurovascular structures and have a predilection for infiltrating bones 6 . (radiopaedia.org)
  • Operations on tumors of the posteromedial temporal (PMT) region, that is, on those arising from the posterior parahippocampal, fusiform, and lingual gyri, are challenging to perform because of the deep-seated location of these tumors between critical cisternal neurovascular structures and the adjacent temporal and occipital cortexes. (thejns.org)
  • For exact categorization of these tumors, immunohistochemistry and chromosomal study is essential. (ejao.org)
  • Immunohistochemistry showed tumor cells with extensive and diffuse positivity to muscular actin (HHF 35) and negativity to desmin and osteocalcin. (isciii.es)
  • Researchers need your medical records to correlate and link your ear disorders to the changes they find in your donated temporal bones. (masseyeandear.org)
  • Balloon sinuplasty is a midway point between using medicines such as decongestants and nasal steroids to treat infections and full sinus surgery, which involves the removal of tissue and bone and the use of general anesthesia. (ceenta.com)
  • 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)
  • All tumors were partially located within the jugular foramen. (ajnr.org)
  • In seven patients, CT scans with bone algorithm showed an enlarged jugular foramen with sharply rounded bone borders and a sclerotic rim. (ajnr.org)
  • 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)
  • About 130 patients with neurogenic tumors of the jugular foramen without associated neurofibromatosis have been reported. (ajnr.org)
  • Cranial nerve palsies of the 9th, 10th, or 11th nerve may accompany glomus jugulare tumors that extend through the jugular foramen. (msdmanuals.com)
  • MRI result: tumor mass with infiltration of the nasal septum, sphenoidal sinus, frontal sinus, maxillary sinus, and left orbit medial wall. (isciii.es)
  • A rolled-up skin graft with a temporal muscle flap was useful for keeping the form and maintaining the postoperative hearing. (hindawi.com)
  • Since these are rare tumors, treatment protocols are is not well established. (ejao.org)
  • Histopathology of the tumor may determine the postoperative treatment course for patients. (medscape.com)
  • For example, +8 is more common after busulfan than hydroxyurea therapy, and the secondary changes seen after interferon-alpha treatment or bone marrow transplantation are often unusual, seemingly random, and occasionally transient. (lu.se)
  • 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)
  • Vagal and Carotid Body Tumors. (scirp.org)
  • This method offers high resolution and contrast and can be extremely useful in showing small structures surrounded by fluid, including detailed delineation of the seventh-eighth nerve complex in the temporal bone as well as the membranous labyrinth. (medscape.com)
  • Nerve damage, which may be caused by the tumor itself or damage during surgery, rarely occurs. (medlineplus.gov)
  • Tumors of the cranial nerve sheath constitute 5% to 10% of all intracranial neoplasms, yet few articles have described their CT and MR characteristics. (ajnr.org)
  • Cranial nerve sheath tumors constitute 5% to 10% of all intracranial neoplasms. (ajnr.org)
  • When the origin could be identified, almost all these tumors were histologically proved to be schwannomas of the glossopharyngeal nerve. (ajnr.org)
  • Most tumors emanating from the temporal bone directly affects the internal auditory canal and may prolepses into the auditory nerve endings. (sinuswars.com)
  • All these are various types of tumors that may directly or indirectly affect the auditory nerve, producing either hearing loss, tinnitus or both. (sinuswars.com)
  • Nerve-sheath tumor was diagnosed in 10 dogs with clinical signs of unilateral trigeminal nerve dysfunction. (avmi.net)
  • The facial nerve travels through the parotid salivary gland and is therefore at risk during surgery to remove tumors of the parotid gland. (pacificneuroscienceinstitute.org)
  • [ 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)
  • Rhabdomyosarcomas are thought not to arise from skeletal muscle, but rather to differentiate into a tumor that resembles skeletal muscle 7 . (radiopaedia.org)
  • Two different growing patterns of sphenoid wing meningioma have been described: meningioma en masse, forming a nodular space-occupying lesion, and meningioma en plaque, which is flat and demonstrates a carpet-like growth pattern. (medscape.com)
  • It separates sphenoid bone and squama portion of temporal bone. (wikipedia.org)
  • Sphenoid wing meningiomas also are known as "orbitosphenoid meningiomas," "meningiomas en plaque of the sphenoid wing," and "sphenoid wing meningiomas with osseous involvement. (medscape.com)
  • This tumor usually arises from the lesser wing of the sphenoid bone. (medscape.com)
  • These tumors most often occur late in life, around age 60 or 70, but they can appear at any age. (medlineplus.gov)
  • These tumors can occur anywhere, and not necessarily where the skeletal muscle is normally found. (radiopaedia.org)
  • Differential diagnosis of small round cell tumors is particularly difficult due to their undifferentiated or primitive character. (ejao.org)
  • This diagnosis should be considered in the differential of bone neoplasms in this region. (johnshopkins.edu)
  • Medially, they may expand into the wall of the cavernous sinus, anteriorly into the orbit, and laterally into the temporal bone. (medscape.com)
  • The squamous part is the largest and most superiorly positioned relative to the rest of the bone. (wikipedia.org)
  • The zygomatic process is a long, arched process projecting from the lower region of the squamous part and it articulates with the zygomatic bone. (wikipedia.org)
  • Ankylosis of the TMJ is multifactorial and may be related to acute infectious processes in the joint region, exposure to trauma, tumors and radiation therapy. (bvsalud.org)
  • This shows expansile soft tissue densities and diffuse erosive destruction on the left temporal bone. (ejao.org)
  • Rhabdomyosarcomas are the most common soft tissue tumor in children and account for 5-8% of childhood cancers 6,7 , and 19% of all pediatric soft tissue sarcomas 7 . (radiopaedia.org)
  • While combined treatments (surgery, chemotherapy, radiotherapy) is currently being applied, the tumor still has a poor prognosis. (ejao.org)
  • Predictive Effect of Bone Conduction Pattern on Hearing Outcomes of Stapes Surgery. (uc.edu)
  • At the six-year checkup after surgery, no sign of a recurrent tumor was observed. (hindawi.com)
  • Only 200 new cases of temporal bone cancer may be diagnosed each year across the United States. (medscape.com)
  • Axial image that shows the spread of temporal bone cancer. (medscape.com)
  • Our comprehensive services offer auditory brainstem implants, cochlear implants by board-certified physicians and bone cancer treatments. (uchealth.com)
  • 3) Reports previously showed that temporal bone metastases were not observed in cancer patients in which the primary tumor was adequately treated. (ejao.org)
  • Resolving the Pathogenesis of Anaplastic Wilms Tumors through Spatial Mapping of Cancer Cell Evolution. (lu.se)
  • Traditional surgical approaches require temporal or occipital transgression, retraction, or venous sacrifice. (thejns.org)
  • Histopathologic study of the surgical piece revealed a malignant mesenchymal tumor of high cellular density arrayed in sheets and adopting different patterns in which fusiform, epithelioid, highly collagenized, and myxoid areas alternated. (isciii.es)
  • This case represents the imaging and surgical management of a rare ABC in the temporal bone. (johnshopkins.edu)
  • Our experienced surgeons uses leading-edge technology and advanced minimally invasive techniques to treat patients with conditions such as acoustic neuromas, aneurysms, hearing loss, tumors and facial paralysis. (uhhospitals.org)
  • The orbital involvement of the tumor causes significant proptosis of the affected eye. (medscape.com)
  • This type is very difficult to resect because of the absence of the arachnoid plane between the tumor and the internal carotid artery. (medscape.com)
  • An attempt to obtain a biopsy of the tumor under local anesthesia was impeded by profuse bleeding. (isciii.es)
  • Ankylosis of the temporomandibular joint (TMJ) refers to the fusion of the capsule of the disc-condyle complex with the joint surface of the temporal bone, which restricts the movement of the joints. (bvsalud.org)