Extradural ancient schwannoma of the spine: 2 cases and literature review

Abstract

Ancient schwannoma is a variant of schwannoma and rarely occurs in the spine. Here, we report 2 cases of ancient schwannoma of the spine. The first case was a 71-year-old man who presented with a-month history of gait disturbance. Imaging suggested extradural tumor or hematoma of the thoracic spine, for which symptoms resolved following en-bloc resection. The second case was a 58-year-old man who presented with difficulty walking due to cervical extradural tumor. Piecemeal resection of the tumor led to gradual improvement of his symptom.

Keywords

• Ancient schwannoma
• Extradural tumor
• Degeneration
• Hyalinization
• S-100 protein