PT - JOURNAL ARTICLE AU - Krishnaney, Ajit A. AU - Rasmussen, Peter A. AU - Masaryk, Thomas TI - Bilateral Tentorial Subdural Hematoma without Subarachnoid Hemorrhage Secondary to Anterior Communicating Artery Aneurysm Rupture: A Case Report and Review of the Literature DP - 2004 Jun 01 TA - American Journal of Neuroradiology PG - 1006--1007 VI - 25 IP - 6 4099 - http://www.ajnr.org/content/25/6/1006.short 4100 - http://www.ajnr.org/content/25/6/1006.full SO - Am. J. Neuroradiol.2004 Jun 01; 25 AB - Summary: A case of acute subdural hematoma over the tentorium secondary to rupture of an anterior communicating artery aneurysm is reported. A 42-year-old female patient presented with acute-onset, severe bifrontal and retro-orbital headache. CT revealed only symmetric thickening of the tentorium. MR imaging revealed the presence of a 10-mm anterior communicating artery aneurysm, which was confirmed by digital subtraction angiography. The radiologic findings and possible mechanisms of this hemorrhage are discussed.