title: Mast cell-rich convexity meningioma presenting as chronic subdural hematoma: case report and review of the literature.
abstract: A 47-year-old woman with a convexity meningioma presenting as a chronic subdural hematoma is reported. This case is unique in that the symptoms were cyclical and stereotypic. The tumor contained an unusually high number of mast cells. A possible etiologic role of histamine-related vasodilation and tumoral hemorrhage is explored. The relationship between meningioma and subdural hematoma is discussed, and the literature is reviewed.
authors.affiliation: Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota.
authors.forename: E A
authors.initials: EA
authors.lastname: Popovic
authors.forename: M K
authors.initials: MK
authors.lastname: Lyons
authors.forename: B W
authors.initials: BW
authors.lastname: Scheithauer
authors.forename: W R
authors.initials: WR
authors.lastname: Marsh
mesh_terms: D001921:Brain / Q000473:pathology; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000473:pathology; D002543:Cerebral Hemorrhage / Q000150:complications; D002908:Chronic Disease; D003937:Diagnosis, Differential; D005073:Evoked Potentials, Somatosensory; D005260:Female; D006408:Hematoma, Subdural / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D006636:Histamine Release; D006801:Humans; D008279:Magnetic Resonance Imaging; D008407:Mast Cells / Q000473:pathology*; D008579:Meningioma / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D008875:Middle Aged; D010784:Photomicrography; D014664:Vasodilation