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...
متن کاملAncient Schwannoma of the Trigeminal Nerve Mimicking High Grade Lesion
Ancient schwannomas rarely found in the central nervous system and ancient change in an intracranial schwannoma (intracranial portion of the trigeminal nerve) is extremely rare. A seventy-year man presented with headache of 3 months duration and one episode of generalized tonic-clonic seizures. Imaging findings were suggestive of left temporal high grade lesion. During surgery there was well...
متن کاملRetroperitoneal giant ancient schwannoma.
Ancient schwannoma is a rare variant of benign peripheral nerve sheath tumor, often morphologically mimicking malignancy. Retroperitoneum is an uncommon location. We describe one case of giant retroperitoneal ancient schwannoma. Literature concerning this variant is also reviewed. A 65 year old male presented with altered bowel habits. Imaging findings revealed a large heterogeneous mass in the...
متن کاملAncient schwannoma of the orbit.
The ancient schwannoma is a rare variant of a neurilemoma with a course typical of a slow-growing benign neoplasm. Histologically, it can be confused with a malignant mesenchymal tumor because of increased cellularity, nuclear pleomorphism, and hyperchromatism. Despite the degree of nuclear atypia, mitotic figures are absent. We describe the clinical and histopathologic features of an ancient s...
متن کاملAncient Schwannoma-A Rare Case
Schwannoma is a relatively uncommon, slow-growing benign tumor that is derived apparently from the Schwann cells lining the nerve sheath. The schwannoma is usually a solitary lesion, and can be multiple when associated with neurofibromatosis. A case of 40-year-old women with a swelling in her mid-portion of the lower lip is presented. The diagnosis was established based on clinical, histopathol...
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ژورنال
عنوان ژورنال: Annals of Pathology and Laboratory Medicine
سال: 2017
ISSN: 2394-6466,2349-6983
DOI: 10.21276/apalm.2017.1109