RT Journal Article SR Electronic T1 Migrating Subdural Hematoma without Subarachnoid Hemorrhage in the Case of a Patient with a Ruptured Aneurysm in the Intrasellar Anterior Communicating Artery JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 2014 OP 2016 DO 10.3174/ajnr.A0726 VO 28 IS 10 A1 R. Gilad A1 G.M. Fatterpekar A1 D.M. Johnson A1 A.B. Patel YR 2007 UL http://www.ajnr.org/content/28/10/2014.abstract AB SUMMARY: Acute spontaneous subdural hematoma without the presence of a subarachnoid hemorrhage as a result of a ruptured aneurysm is rare. We present the case of a patient with an aneurysm of the intrasellar anterior communicating artery that caused hemorrhage solely into the subdural space. The hemorrhage then migrated down the spinal canal. Our case is unique because all these 3 rare processes occurred in a single patient. Identification of the cause of this type of hemorrhage in a timely fashion is crucial to the management of such a patient.