Subfrontal schwannoma with ancient change: A case report

A rare case of ancient schwannoma originating from subfrontal region is reported. A 39-year-old woman underwent a medical checkup of the brain and her magnetic resonance imaging revealed a well-circumscribed mass with cystic change in the left subfrontal region. H magnetic resonance spectroscopy, positron emission tomography, and perfusion computed tomography failed to reveal any malignant findings. Total removal of the tumor by subfrontal approach was performed. Pathologic evaluation revealed strongly suggestive findings of ancient schwannoma, a rare variant of schwannoma. Subfrontal schwannoma is uncommon; especially, that with ancient change is further rare, and, herein, its neuroradiologic and histologic features are discussed.