BACKGROUND Schwannomatosis is a disease characterized by multiple non-vestibular schwannomas. Although biallelic NF2 mutations are found in schwannomas, no germ line event is detected in schwannomatosis patients. In contrast, germline mutations of the SMARCB1 (INI1) tumor suppressor gene were described in familial and sporadic schwannomatosis patients. METHODS To delineate the SMARCB1 gene co...

Introduction: Retropharyngeal space schwannomas are rare entities. About 20-45% of schwannomas occur in the head and neck region; however, they represent less than 1% of all head and neck tumors.  Case Report: We present the case of a 36-year-old woman complaining of dysphagia caused by a large schwannoma arising in the posterior pharyngeal wall with remarkable reduction of the oropharyngeal sp...

Cranial nerve schwannomas are not uncommon intracranial tumors. Schwannomas arising from cranial nerve XI not only comprise a minority of these neoplasms but may also involve the extracranial segment of the spinal accessory nerve. The clinical presentation of cranial nerve XI schwannomas relates to their location and extent: intracranial, jugular foramen, upper neck, or cervical spine. This rep...

ناوش ايلاخ للاخ نم ةفلغلما ةديملحا مارولأا نم وه ينافش مرو مرو .ينلايلمأ ةيطيلمحا ةيبصعلا فايللأا لوط ىلع ءطبب ومنت يتلا ةبسنب ثدحي دق و ،ًادج ةردان ةلاح وه يزجعلا يكوشلا ينافش طقف ةلاح 50و ،يكوشلا ينافش مرو تلااح عيمج نم 1-5% .يزجعلا ينافش مرو نم ةددحم عاونأ 3 كانه .اهنع غلابلإا متي ينافش مروو يمظعلا لخاد ،زجهلا مامأ وأ قافصلا فلخ يهو ينافش ببسب لمنتو مللأا نم ةداع نوكشي ىضرلماف .يكوشلا ةعشلأا ...

Schwannomas or neurilemmomas are benign neoplasms of the Schwann cells in neural sheaths. They may arise in any nerve in the body and occur frequently in the head and neck region or extremities. While breast lumps and schwannomas are very common, mammary schwannomas are exceedingly scarce with ,30 cases reported in the literature. We describe a case of a breast schwannoma in a 37-year-old femal...

PURPOSE To evaluate the spectrum of MR characteristics of cystic acoustic schwannoma and to investigate its incidence. METHODS We retrospectively reviewed the MR findings and clinical records of 16 patients with cystic acoustic schwannomas. In addition, the MR examinations of 411 consecutive patients referred for clinical suspicion of acoustic schwannomas were reviewed retrospectively to asse...

Target Population Adults with histologically proven or suspected vestibular schwannomas with neurofibromatosis type 2 (NF2). Question What is the role of bevacizumab in the treatment of patients with vestibular schwannomas? Recommendations Level 3: It is recommended that bevacizumab be administered in order to radiographically reduce the size or prolong tumor stability in patients with NF2 ...

Schwannomas are benign neoplasms originating from the neural sheath and occurring most often in the soft tissues of the head and neck. Intraosseous schwannomas, however, are rare. The most common site of occurrence for these unusual lesions is the mandible. This article documents a case of an intramandibular schwannoma and provides a review of the literature on intraosseous schwannomas, with sp...

Schwannomas are peripheral nerve sheath tumors usually detected in adults which extremely rare pediatric population and when present they commonly associated with Neurofibromatosis type 2. While frequently observed the head, neck, extremities, could be anywhere body including abdominal cavity. The most common site for intraabdominal schwannomas is stomach pelvic rare. imaging characteristics qu...