Fig. 2
From: Surgical outcome of primary intradural spinal arachnoid cysts: a series of 10 cases
Case 2: 34-year-old male presented by persistent back pain and moderate restriction of daily activity after history of being operated for cystoperitoneal shunt in another center. Initial MRI pictures before the first surgery were not available, plain X-ray on shunt tube (white arrow, c) showed both spinal and peritoneal ends in place, sagittal and axial T2 MRI (a, b) showing multilocular dorsal thoracic cyst compressing the cord. The patient was operated for microscopic excision of the outer cyst wall, fenestration of the septa, and marsupialization of the inner wall (black arrows, f), shunt tube was left in place (f). The patient improved immediately after surgery and follow up MRI sagittal and axial T2 (d, e) showed cord decompression. No cyst recurrence was observed during annual follow-up period