Recurrent cerebral arteriovenous malformation with a posterior inferior cerebellar artery aneurysm

Cerebral arteriovenous malformations (AVMs) are congenital lesions which rarely recur after complete microsurgical excision.

This case report presents a 35-year-old woman who had been referred with a hemorrhagic AVM five years ago. This patient has recently undergone microsurgical excision for her left parieto-occipital Grade II AVM and surgical clipping of the left posterior inferior cerebellar artery (PICA) aneurysm which was concomitantly detected. She is the oldest case reported whose AVM recurred as Grade III, which is bigger than her first AVM associated with an aneurysm.

Although some authors do not propose routine additional follow-up in adults after the initial negative postoperative angiogram, we believe that such patients should be followed clinically and radiologically.