Giant cystic sacral schwannoma mimicking tarlov cyst: a case report

摘要

PurposeTo present a rare case of a giant schwannoma of the sacrum mimicking a Tarlov cyst.MethodsA 58-year-old woman had a 1-year history of low back pain. MRI revealed a large cystic mass in the sacral canal with bony erosion. Radiological diagnosis of Tarlov cyst was made.ResultsThe patient underwent surgical treatment for the lesion, which revealed a solid mass. Histopathological examination of the tumor confirmed the diagnosis of schwannoma. The postoperative course was uneventful and the patient has had significant improvement in her pain 1?month postoperatively.ConclusionGiant cystic schwannoma of the sacrum is a very rare diagnosis overlooked by practitioners for more common cystic etiologies, but its treatment is significantly different. Care should be taken to include this diagnosis in a differential for a cystic sacral mass...