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 schwannoma of the orbit. A need for early removal of such tumors is recommended to prevent complications.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4134548 | PMC |
| http://dx.doi.org/10.4103/0974-620X.137146 | DOI Listing |
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