Posterior cerebral artery aneurysm in a two-year-old girl

Intracranial aneurysms are seldom encountered in the pediatric age group, and those within the posterior circulation are even more rare. Intracranial aneurysms in children differ from adult aneurysms in size, distribution, histology and incidence of symptoms. The authors report a 2-year-old female patient with a posterior cerebral artery aneurysm presenting with seizures, right third nerve palsy and right hemiparesis caused by compression of the contralateral cerebral peduncle. The patient underwent a pterional craniotomy and clipping of the aneurysm. Right oculomotor nerve palsy remained postoperatively. We review the literature and discuss the characteristics of aneurysms of the posterior cerebral artery and those in early childhood.