Enterogenous cyst of the cerebellopontine angle cistern: case report. A case of an enterogenous cyst located in the cerebellopontine angle cistern is presented. These cysts have usually been found in the spinal canal, and their intracranial occurrence is exceptional. In the present case, the cyst was lined histologically by a single epithelial layer of cuboidal cells with some glandular structures resembling the fundic glands of the stomach. The unusual location of the cyst and its histological features are discussed. 