TY - JOUR T1 - Bilateral Tentorial Subdural Hematoma without Subarachnoid Hemorrhage Secondary to Anterior Communicating Artery Aneurysm Rupture: A Case Report and Review of the Literature JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1006 LP - 1007 VL - 25 IS - 6 AU - Ajit A. Krishnaney AU - Peter A. Rasmussen AU - Thomas Masaryk Y1 - 2004/06/01 UR - http://www.ajnr.org/content/25/6/1006.abstract N2 - 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. ER -