Aneurysmal subarachnoid hemorrhage (SAH) is rare in neonates. The authors present a unique report of a neonate with SAH from anterior inferior cerebellar artery (AICA) aneurysm rupture that was successfully treated with Onyx embolization. This case report demonstrates the utility of Onyx embolization for posterior circulation aneurysms in neonates and the successful management of SAH in this population.
Keywords: Aneurysm; Anterior inferior cerebellar artery; Liquid embolic agent; Onyx embolization; Posterior circulation; Subarachnoid hemorrhage.