TY - JOUR T1 - Aqueductal blood clot as a cause of acute hydrocephalus in subarachnoid hemorrhage. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1183 LP - 1186 VL - 17 IS - 6 AU - Y Yoshimoto AU - C Ochiai AU - K Kawamata AU - M Endo AU - M Nagai Y1 - 1996/06/01 UR - http://www.ajnr.org/content/17/6/1183.abstract N2 - We describe two patients with acute hydrocephalus, in whom CT scans did not show intraventricular hemorrhage unequivocally. Midline sagittal MR imaging revealed a blood clot plugging the aqueduct. MR imaging is useful for detecting sub-acute clots within the aqueduct and for differentiating them from other entities. ER -