title: Rhabdoid meningioma presenting with subependymal and diffuse meningeal involvement but no mass lesion.
abstract: Rhabdoid meningiomas are rare, aggressive tumours of the meninges that have a generally poor prognosis. We report a 49-year-old man with a background history of sarcoidosis who presented with nausea and vomiting. Imaging showed generalised leptomeningeal and subependymal enhancement suggestive of chronic meningitis. He had multiple lumbar punctures and a brain biopsy, none of which led to a pathological diagnosis. He died within months, and a postmortem examination was performed. At this stage, a diagnosis of rhabdoid meningioma was made. The clinical and radiological presentation of rhabdoid meningioma as a diffuse leptomeningeal process without a mass lesion is unique. All other published cases of rhabdoid meningioma have been of a discrete lesion. This highlights the importance of a tissue diagnosis in patients where the imaging is non-specific. A brief review of rhabdoid meningioma follows.
authors.affiliation: Department of Neurology, The Canberra Hospital, Australian Capital Territory 2611, Australia.
authors.forename: Kate E
authors.initials: KE
authors.lastname: Ahmad
authors.forename: Suad
authors.initials: S
authors.lastname: Al-Jahdhami
authors.forename: Omar
authors.initials: O
authors.lastname: Ahmad
mesh_terms: D017809:Fatal Outcome; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000150:complications / Q000473:pathology*; D008579:Meningioma / Q000150:complications / Q000473:pathology*; D008875:Middle Aged; D018335:Rhabdoid Tumor / Q000150:complications / Q000473:pathology*; D012507:Sarcoidosis / Q000150:complications; D014057:Tomography, X-Ray Computed