Totally Cystic Schwannoma in the Lumbar Spine: A Case Report

Abstract

Totally cystic schwannomas are a rare condition described in the current case report. A 63-year-old woman with chronic lower back pain radiating to her left lower extremity was primarily managed incorrectly. Her magnetic resonance imaging (MRI) was performed, presenting an intradural cystic mass at L2-L3 with approximately 23 x 16 x 18 mm size and characteristics of hypointense and hyperintense views on T1-weighted imaging (T1WI), and T2WI, respectively. Additionally, Gadolinium-contrasted images showed a smooth and thin rim enhancement of the cyst. These characteristics were compatible with cystic schwannoma. Accordingly, L2-L3 laminectomy was done and the tumor was excised. The pathological study approved the diagnosis. At the 16-month follow-up, the patient experienced symptom relief with no sign of recurrence. Cystic schwannomas are rare benign tumors that can cause debilitating symptoms if not promptly diagnosed and treated. Contrast-enhanced MRI is essential for diagnosing these tumors, and surgical resection is the choice of treatment.