title: Extraventricular neurocytoma of the vermis in a child.
abstract: Neurocytomas are rare neoplasms, composed of uniform round cells with neuronal differentiation. We report a rare extraventricular neurocytoma (EVN) in a 5-year-old boy who presented with headache and vomiting. His MRI brain showed a vermian mass. The histopathological examination and immunohistochemistry revealed it to be an EVN. We report this patient for the rarity of the condition and the EVN mimicking a medulloblastoma on imaging. This tumor needs to be differentiated from a medulloblastoma as the former has a better prognosis.
authors.affiliation: Department of Pathology, Sher-i-Kashmir Institute of Medical Sciences, P.O. Box 27, Soura, Srinagar 190 011 (Kashmir), India. rumanahamid@rediffmail.com
authors.forename: Rumana
authors.initials: R
authors.lastname: Makhdoomi
authors.forename: Nayil Khursheed
authors.initials: NK
authors.lastname: Malik
authors.forename: Abrar
authors.initials: A
authors.lastname: Wani
authors.forename: Salma
authors.initials: S
authors.lastname: Bhat
authors.forename: Khalil
authors.initials: K
authors.lastname: Baba
mesh_terms: D000367:Age Factors; D002528:Cerebellar Neoplasms / Q000175:diagnosis* / Q000473:pathology; D002531:Cerebellum / Q000473:pathology; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D015192:Infratentorial Neoplasms / Q000175:diagnosis* / Q000473:pathology; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D018306:Neurocytoma / Q000175:diagnosis* / Q000473:pathology; D016896:Treatment Outcome