“Ancient” Schwannoma of Hypopharynx: A Case Report with Review of Literature
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چکیده
منابع مشابه
Intraosseous Ancient Schwannoma of the Mandible: A Case Report
Schwannoma(neurilemmoma) is a benign tumor originates from Schwann cells. Ancient (degenerated) schwannoma is a long-standing schwannoma with degenerative changes. Head and neck region is one of the most common sites for nerve sheath tumors but intraosseous schwannoma is rare. The mandible is the most common site of occurrence for this lesion. We report a rare case of intraosseous ancient sc...
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Intracranial schwannomas are benign tumors that arise from Schwann cells. Since it is well known that optic and olfactory nerves do not have a Schwann cell sheath, schwannoma should not develop from these nerves. We report a very unusual case of a 73-year-old female who presented with generalized seizures and had radiological features of an intracranial aneurysm. Additional imaging showed an ex...
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Testicular schwannoma is a very rare benign scrotal tumor. It is a painless mass, but sometimes referred because of pain or sensory losses. Tumor markers are normal and radical orchidectomy is its best treatment. Here we present an unusual case of intrascrotal schwannoma in a 57 year old man, with a review of the literature.
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Ancient schwannomas are benign long standing schwannomas of the neural sheaths. Histological findings are these seen as in conventional schwannomas, but ancient schwannomas additionally demonstrate cystic hemorrhagic changes and degenerative nuclei with pleomorphism and hyperchromasia. Due to the nuclear atypia, and cystic degeneration, ancient schwannomas might be confused with malignant tumor...
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BACKGROUND Schwannomas comprise 8% to 10% of all primary intracranial tumors. Primary intraorbital schwannomas are rare, accounting for 1% to 2% of all intracranial tumors. Schwannomas arise from Schwann cells in the myelin sheaths of sensory and cranial nerves. METHODS We present the case of a 56-year-old white man blind since 1970 who presented to an outside hospital for a painful right eye...
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ژورنال
عنوان ژورنال: Indian Journal of Otolaryngology and Head & Neck Surgery
سال: 2011
ISSN: 2231-3796,0973-7707
DOI: 10.1007/s12070-010-0068-7