Iatrogenic intracranial aneurysm. Case report and review of the literature.

A case of a 56-year-old woman that developed subarachnoid haemorrhage from iatrogenic post-traumatic aneurysm of the cortical middle cerebral artery due to a ventricular tap for hydrocephalus is presented. Previous reported cases of postsurgical aneurysms of the cerebral vessels are discussed and the pathogenesis, the clinical course, the outcome and the advisable treatment of this condition are debated.