title: Sellar and suprasellar medulloepithelioma.
abstract: Medulloepithelioma is a rare tumour with a very poor prognosis. The most frequent site in the central nervous system is the cerebral hemispheres. Appearances on MRI are very variable, possibly reflecting the divergent forms of differentiation seen at histological examination. We report a rare case of sellar and suprasellar medulloepithelioma in a 2-year-old boy and discuss the imaging, differential diagnosis and pathologic findings.
authors.affiliation: Department of Diagnostic Radiology and Organ Imaging, Chinese University of Hong Kong, Hong Kong.
authors.forename: L M
authors.initials: LM
authors.lastname: Pang
authors.forename: D J
authors.initials: DJ
authors.lastname: Roebuck
authors.forename: H K
authors.initials: HK
authors.lastname: Ng
authors.forename: Y L
authors.initials: YL
authors.lastname: Chan
mesh_terms: D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology*; D002675:Child, Preschool; D017809:Fatal Outcome; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D018242:Neuroectodermal Tumors, Primitive / Q000175:diagnosis / Q000473:pathology*