Coincidental Feeding Artery Aneurysm Presenting during Glioblastoma Surgery: A Case Report and Literature Review.

The medical literature reports an association between cerebral neoplasms and aneurysm formation. Some related aneurysms are detected during preoperative screening, whereas others are detected during or after surgery. We report a case of a patient with a de novo cerebral feeding artery aneurysm that we managed during glioblastoma surgery. We present a brief review of the literature on the co-existence of brain tumours, particularly that related to high-grade glioma and aneurysms. The literature discusses several mechanisms underlying tumour formation accompanied by aneurysm formation. Also some classifications were proposed grouping such aneurysms. We question the necessity for the routine use of vascular imaging for patients with glioblastoma.