title: Extra-axial medulloblastoma in the cerebellopontine angle: Report of a rare entity with review of literature.
abstract: With only 33 cases reported so far, a purely extra-axial position of medulloblastoma at cerebellopontine (CP) angle is quite exceptional. We report a case of extra-axial medulloblastoma in a 15-year-old male child located in the CP angle that was surgically treated with a provisional diagnosis of schwannoma. Histopathological diagnosis of medulloblastoma was made with the routine hematoxylin and eosin stain and immunohistochemical markers. This case report highlights the fact that although extremely rare, the possibility of an extra-axial mass being a medulloblastoma does exist.
authors.affiliation: Department of Pathology, Institute of Human Behaviour and Allied Sciences, New Delhi, India.
authors.forename: Ishita
authors.initials: I
authors.lastname: Pant
authors.affiliation: Department of Pathology, Institute of Human Behaviour and Allied Sciences, New Delhi, India.
authors.forename: Sujata
authors.initials: S
authors.lastname: Chaturvedi
authors.affiliation: Department of Neurosurgery, Institute of Human Behaviour and Allied Sciences, New Delhi, India.
authors.forename: Vinod K S
authors.initials: VK
authors.lastname: Gautam
authors.affiliation: Department of Neurosurgery, Institute of Human Behaviour and Allied Sciences, New Delhi, India.
authors.forename: Pranjal
authors.initials: P
authors.lastname: Pandey
authors.affiliation: Department of Neuroradiology, Institute of Human Behaviour and Allied Sciences, New Delhi, India.
authors.forename: Rima
authors.initials: R
authors.lastname: Kumari
keywords: Cerebellopontine angle; extra-axial; medulloblastoma; pediatric neoplasms