Aneurysm of the Posterior Inferior Cerebellar Artery: Rupture in a Newborn

Medical literature describing intracranial aneurysms and their cause, effect, and treatment in adults is plentiful. However, aneurysms of the posterior fossa occurring in children are not common, and those specifically of the posterior inferior cerebellar artery in children are indeed a rarity.^1,2 McDonald and Korb² reviewed the literature of intracranial aneurysms prior to 1939, and of the 1,125 cases reviewed found 251 (22%) to be in the vertebrobasilar system. Eight of these 251 (0.7%) were of the posterior inferior cerebellar artery, and only one of the eight occurred in a child. This was a 6-year-old child reported by Haike and Lewy.³ Hermann and MacGregor⁴ and Newcomb and Munns⁵ published case reports of aneurysms in children neither of which occurred in the posterior fossa. Carmichael,⁶ in 1950, reviewed 267 intracranial aneurysms and found only one occurring in a child. Jane¹ reported a large unruptured