Giant frontal intraparenchymal schwannoma: unexpected diagnosis.

We report the case of an intraparenchymal frontal schwannoma, surgically resected in a middle-aged, otherwise healthy woman. Magnetic resonance imaging was ineffective for the definitive diagnosis and was instead afforded by histology. This case is unique because the rare lesion presented as a giant mass; to the best of our knowledge, such a finding has not been previously reported.