We report a patient who presented with headache due to diffuse subarachnoid hemorrhage. A four-vessel angiogram revealed a left posterior communicating artery aneurysm with fetal origin, persistent primitive trigeminal artery and hypoplastic vertebral artery on the same side. This association was considered coincidental and co-existence of a saccular aneurysm with an anatomical variation of intracranial vasculature is briefly discussed.
All Science Journal Classification (ASJC) codes
- Pathology and Forensic Medicine
- Radiology Nuclear Medicine and imaging
- Intracranial aneurysm
- Persistent primitive trigeminal artery
- Posterior communicating artery
- Subarachnoid hemorrhage