title: Malignant hemangiopericytoma of pituitary fossa.
abstract: Intracranial hemangiopericytomas are rare tumors with aggressive behavior. Other than the meninges, this lesion has rarely been reported in periventricular and sellar region. We report a case of malignant hemangiopericytoma in sellar region in a 47-year-old male who presented with history of sudden onset of bilateral visual disturbances. To best of our knowledge, this is the second case report of malignant hemangiopericytoma in this location. As this intracranial lesion shows aggressive behavior, in the form of recurrence or extracranial metastasis in comparison to its extracranial counterparts, diagnosis should be made cautiously.
authors.affiliation: Department of Pathology, All India Institute of Medical sciences, New Delhi, India.
authors.forename: Prasenjit
authors.initials: P
authors.lastname: Das
authors.forename: Kunhi P
authors.initials: KP
authors.lastname: Haresh
authors.forename: Vaishali
authors.initials: V
authors.lastname: Suri
authors.forename: Mehar Chand
authors.initials: MC
authors.lastname: Sharma
authors.forename: Bhawani Shankar
authors.initials: BS
authors.lastname: Sharma
authors.forename: Chitra
authors.initials: C
authors.lastname: Sarkar
mesh_terms: D000818:Animals; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000473:pathology* / Q000601:surgery; D006257:Head / Q000000981:diagnostic imaging; D006393:Hemangiopericytoma / Q000175:diagnosis* / Q000473:pathology* / Q000601:surgery; D006651:Histocytochemistry / Q000379:methods; D006801:Humans; D007150:Immunohistochemistry / Q000379:methods; D008279:Magnetic Resonance Imaging; D008297:Male; D008853:Microscopy / Q000379:methods; D008875:Middle Aged; D011859:Radiography; D012658:Sella Turcica / Q000473:pathology*; D014054:Tomography