Intracranial arterial aneurysms in children are very rare. The authors present the clinical and neuroradiological findings in a 12-year-old child with subarachnoid and intraventricular hemorrhage related to posterior communicating artery aneurysm. The aneurysm was successfully treated with endovascular coiling. The literature regarding this topic is reviewed and the management of subarachnoid hemorrhage in children is discussed.