2003 Volume 12 Issue 11 Pages 742-746
Postoperative hemorrhage located remotely from the operative site as a complication of intracranial surgery is a rare event, especially when it involves the cerebellum after supratentorial craniotomy. We report 2 cases of cerebellar hemorrhage after supratentorial surgery, which had similar clinical findings and CT images. Two cases of unruptured right middle cerebral aneurysms were found in a 57-year-old male and a 61-year-old man. The aneurysms were clipped through the pterional approach in both cases without any problems during the surgical procedures. Cerebrospinal fluid was suctioned from the carotid and prechiasmatic cistern during the operation, but no marked brain shrinkage was observed. Postoperative CT scans showed that the hemorrhages were located in the cerebellar vermis and bilateral superior folia of the cerebellum. It was thought that the cause of the cerebellar hemorrhage in both these cases was the hemorrhagic infarction with venous hypertension to which a bridging vein was stretched as a result of cerebellar shrinkage following the removal of cerebrospinal fluid.
