Concomitant Pneumocephalus and Pneumorrhachis after Posterior Fossa Surgery

Pneumorrhachis, the presence of air in the spinal canal, may be caused by diverse pathologies such as incidental durot-omy, barotrauma, pneumothorax, and trauma. 1 It is usually asymptomatic, being often noted on radiological investiga-tions, but at times can cause features of cord compression. 2 The occurrence of pneumocephalus is quite common after posterior fossa surgery, but pneumorrhachis is a rare entity despite an existing communication between the cerebral and spinal subarachnoid spaces. We report a case of pneumorrhachis, wherein air was incidentally detected on postoperative scans in a child after posterior fossa surgery. Parent of this child provided written consent for the publication of this letter. A