CT scanning for papilloma of choroid plexus.

A case of choroid plexus papilloma is presented which was extensively investigated. The location of the pedicle of this tumor was not demonstrated by conventional CT, ventriculography of ventriculoscopy. Coronal CT sections, however, clearly showed the pedicle and its location. Dilatation of the cisterns and sulci suggested that there was overproduction of cerebrospinal fluid.