Aneurysm with a Branch Arising from the Sac: Balloon over Inflation Technique
A 68-year-old female presented with subarachnoid haemorrhage 2 weeks back. Selective right internal carotid angiogram (Fig. 12.1) revealed right posterior communicating artery aneurysm with posterior cerebral artery (PCA) arising from the aneurysm. The PCA was filling solely from the internal carotid artery (ICA) injections. Vertebral artery angiogram did not reveal any opacification of right PCA due to absent P1 segment of right PCA. The aneurysm was broad neck along with a small projection from the fundus, probably the rupture point.