Entrapment of the Temporal Horn: A Form of Focal Non-communicating Hydrocephalus Caused by Intraventricular Block of Cerebrospinal Fluid Flow —Report of Two Cases—

Abstract

In two cases of entrapment of the temporal horn, computed tomography demonstrated the typical appearance of a comma-shaped homogeneous area isodense with water surrounded by a periventricular low-density area. The cause was probably choroid plexitis resulting in obstruction of the cerebrospinal fluid pathway at the atrium. External drainage followed by shunt emplacement is indicated.