<prompt> Which of the following is not a cause of spontaneous CSF leak?Raised ICPPseudotumor cerebriEmpty sella syndromeEncephalocele  <response>: Pseudotumor cerebri, Empty sella syndrome and Encephalocele are causes of spontaneous CSF leak leading to intracranial hypotension. Hence raised ICP is contradictory in spontaneous CSF leak. Ref: Progress in Clinical Neurosciences, Volume 24 By Deepu Banerji , Pages 219-224; Chronic Daily Headache for Clinicians By Peter J. Goadsby, Stephen D. Silberstein, David Dodick, Pages 212-13. 