title: Brain metastasis from invasive thymoma mimicking intracerebral hemorrhage: case report.
abstract: A 55-year-old man with an 8-year history of invasive thymoma presented with sudden onset of left hemiparesis. Computed tomography (CT) and magnetic resonance (MR) imaging showed a right frontal lobe intracerebral hemorrhage and the possibility of brain metastasis could not be rejected. The patient underwent removal of the hematoma. Histological examination showed brain metastasis from invasive thymoma. To the best of our knowledge, this is the first reported case of hemorrhagic brain metastasis from invasive thymoma (non-cancerous) mimicking intracerebral hemorrhage.
authors.affiliation: Department of Neurosurgery, Aomori Prefectural Central Hospital.
authors.forename: Shinya
authors.initials: S
authors.lastname: Haryu
authors.forename: Atsushi
authors.initials: A
authors.lastname: Saito
authors.forename: Mizuho
authors.initials: M
authors.lastname: Inoue
authors.forename: Seiya
authors.initials: S
authors.lastname: Sannohe
authors.forename: Hidekachi
authors.initials: H
authors.lastname: Kurotaki
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kon
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Sasaki
authors.forename: Michiharu
authors.initials: M
authors.lastname: Nishijima
mesh_terms: D001932:Brain Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000556:secondary*; D002543:Cerebral Hemorrhage / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D005625:Frontal Lobe / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D013945:Thymoma / Q000175:diagnosis* / Q000473:pathology / Q000556:secondary*; D014057:Tomography, X-Ray Computed