title: Papillary tumor of pineal region: report of three cases and review of literature.
abstract: Papillary tumors of the pineal region (PTPRs) are rare and are recognized as a distinct entity in the recent 2007 World Health Organization (WHO) classification of tumors of nervous system. Till date, only 55 cases have been reported. We report another three patients of PTPRs with characteristic radiological features. Histologically, all the three patients exhibited remarkable uniform histology of epithelioid morphology with variable presence of single to multilayered papillary architecture. Consistent absence of fibrillary matrix was noted in all the three cases. None of the cases showed aggressive histology. A large multicenter study is essential for upfront characterizing the biological behavior, as frequency of these tumors is very low.
authors: Department of Pathology, Tata Memorial Centre, Mumbai, India. sridhep@gmail.com
authors: Sridhar
authors: S
authors: Epari
authors: Reeta
authors: R
authors: Bashyal
authors: Suman
authors: S
authors: Malick
authors: Tejpal
authors: T
authors: Gupta
authors: Aliasgar
authors: A
authors: Moyadi
authors: S V
authors: SV
authors: Kane
authors: Munita
authors: M
authors: Bal
authors: Rakesh
authors: R
authors: Jalali
mesh_terms: D000328:Adult; D001921:Brain / Q000473:pathology; D002291:Carcinoma, Papillary / Q000473:pathology* / Q000601:surgery; D004172:Diplopia / Q000209:etiology; D005260:Female; D006261:Headache / Q000209:etiology; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008297:Male; D019635:Neurosurgical Procedures; D010870:Pineal Gland / Q000473:pathology; D010871:Pinealoma / Q000473:pathology* / Q000601:surgery; D012640:Seizures / Q000209:etiology; D014786:Vision Disorders / Q000209:etiology