Neurenteric cysts are cystic lesions lined by a columnar epithelium of
endodermal derivation. They are rarely located in the central nervous
system. We describe the case history of two recurrent neurenteric cys
ts located within the posterior fossa: one in the 4th ventricle and th
e second in the cerebellopontine angle. The literature is reviewed and
the follow-up and recurrence of such cysts are discussed.