title: A rare presentation of medulloblastoma in adults as primary leptomeningeal involvement.
abstract: Medulloblastoma is one of the most common primary tumors of the central nervous system of children but it is uncommon in adult age. We report a case of young male presented with a history of generalized headache that was found to have medulloblastoma with diffuse leptomeningeal involvement without prominent mass lesion. To our knowledge, our patient is the second reported case of medulloblastoma in adults identified with primary leptomeningeal involvement without a prominent mass lesion. The clinical, radiological and pathologic features of this entity are described.
authors.affiliation: Loghman Hospital, Department of Neurology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Marjan
authors.initials: M
authors.lastname: Asadollahi
authors.forename: Nasrin
authors.initials: N
authors.lastname: Shayanfar
authors.forename: Bibiseyedeh
authors.initials: B
authors.lastname: Rezaiyan
authors.forename: Mehrdad
authors.initials: M
authors.lastname: Hasibi
keywords: Children; Headache; Leptomeningeal Metastasis; Medulloblastoma