Ancient schwannoma is an uncommon variant of schwannoma. While many reports have presented defining histologic and clinical features of ancient schwannoma, there are only a very few cases in the literature, to our knowledge, of ancient schwannoma presenting at the cauda equina. The current report of ancient schwannoma presenting at the cauda equina adds to the literature and discusses the identification of specific histologic characteristics, the role of conservative medical management, surgical resection, and prognostication in this select subset of patients.
Keywords: ancient schwannoma; ancient schwannoma of cauda equina; antoni a; antoni b; cauda equina; common schwannoma; extramedullary spinal mass; intradural extramedullary ancient schwannoma; target lesion mri; verocay bodies.
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