Hydrocephalus Following Surgery of Thoracic Intradural Arachnoid Cyst: A Case Report

Özet

Spinal intradural arachnoid cysts (SIACs) are cerebrospinal fluid (CSF) sacs formed by arachnoid membranes. They may beidiopathic or acquired. Treatment is resection, fenestration, or cyst drainage.A 41-year-old female patient presented with myelopathy symptoms and complaints. Magnetic resonance imaging (MRI) revealed aT6-T10 dorsal intradural arachnoid cyst. A T6-T10 laminectomy was performed and an arachnoid cyst was excised under surgicalmicroscope. The cyst contained a clear liquid that was surrounded by a transparent membrane. At 7 weeks postoperatively,the patient experienced severe headache, excessive sleepiness, vomiting, loss of coordination, difficulty walking, and difficultyconcentrating. A head computed tomography (CT) scan showed marked ventricular dilation that was diagnosed as delayedhydrocephalus. The patient underwent ventriculoperitoneal shunt (VPS) placement one day after admission.This is a rare condition of hydrocephalus that develops due to CSF leakage after SIAC surgery.