title: Persistent posterior fossa ependymomas. Two case reports with unusual long survival.
abstract: Two patients are described who survived respectively 33 and 21 years after partial surgical excision of a posterior fossa ependymoma and who at the time of autopsy were proven to harbor persistent tumour tissue in the same location.
mesh_terms: D000328:Adult; D002551:Cerebral Ventricle Neoplasms / Q000401:mortality* / Q000473:pathology; D003388:Cranial Fossa, Posterior; D004806:Ependymoma / Q000401:mortality* / Q000473:pathology; D006801:Humans; D008297:Male