Subarachnoid Hemorrhage. Axial CT scans without contrast. Note the bright signal which signifies blood in the interhemispheric fissure, Sylvian fissures, and basal cisterns. Also note the moderate ...

Communicating Hydrocephalus from Subarachnoid Hemorrhage. Axial CT scans without contrast. Note the subarachnoid hemorrhage in the basal cisterns and fourth ventricle. However, also note the prominent ...