title: Rhabdoid and papillary meningioma with leptomeningeal dissemination.
abstract: Rhabdoid meningioma is a rare variant of meningioma classified as grade III under the new World Health Organization (WHO) classification of brain tumors. Although this tumor is known for its aggressive behavior, dissemination into cerebral spinal fluid (CSF) is extremely rare. We report here a case of rhabdoid meningioma in a young man, operated on twice previously, who presented with multiple CSF areas of seeding in the brain and spinal cord. The imaging findings for this tumor, including diffusion and perfusion MR sequences, are highlighted. This particular histological subtype of meningioma has a poor prognosis and must be treated aggressively.
authors.affiliation: Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, Kerala, India.
authors.forename: K
authors.initials: K
authors.lastname: Santhosh
authors.forename: C
authors.initials: C
authors.lastname: Kesavadas
authors.forename: V V
authors.initials: VV
authors.lastname: Radhakrishnan
authors.forename: B
authors.initials: B
authors.lastname: Thomas
authors.forename: T R
authors.initials: TR
authors.lastname: Kapilamoorthy
authors.forename: A K
authors.initials: AK
authors.lastname: Gupta
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000556:secondary; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000473:pathology* / Q000601:surgery; D008579:Meningioma / Q000473:pathology* / Q000601:surgery; D009361:Neoplasm Invasiveness; D018335:Rhabdoid Tumor / Q000473:pathology* / Q000601:surgery; D013120:Spinal Cord Neoplasms / Q000556:secondary