title: [A case of cerebral embolism due to cardiac myxoma presenting with multiple cerebral microaneurysms detected on first MRI scans].
abstract: A 64-year-old man developed right arm weakness and dysarthria, and was admitted to our hospital. Diffusion-weighted magnetic resonance imaging of the brain showed a high intensity area in the frontal lobe. T2*-weighted images showed multiple spotty low intensity lesions in bilateral cerebral hemispheres, mimicking cerebral microbleeds. Cerebral angiography showed multiple aneurysms in the anterior, middle, posterior cerebral arteries and cerebellar arteries. Transthoracic echocardiography revealed a floating structure in the left atrial chamber, indicating cardiac myxoma. We diagnosed cardioembolic ischemic stroke due to left atrial myxoma. Cardiac surgery for excision of a left atrial myxoma was performed on the 3rd hospital day. Multiple aneurysms should be taken into account for differential diagnosis in patients with cardiac myxoma and with atypical spotty low intensity on T2*-weighted images.
authors.affiliation: Department of Stroke Medicine, Kawasaki Medical School.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Sato
authors.forename: Naoki
authors.initials: N
authors.lastname: Saji
authors.forename: Kazuto
authors.initials: K
authors.lastname: Kobayashi
authors.forename: Kensaku
authors.initials: K
authors.lastname: Shibazaki
authors.forename: Kazumi
authors.initials: K
authors.lastname: Kimura
mesh_terms: D002533:Cerebral Angiography; D054022:Cerebrum / Q000098:blood supply / Q000000981:diagnostic imaging; D038524:Diffusion Magnetic Resonance Imaging; D004452:Echocardiography; D006338:Heart Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000209:etiology*; D020766:Intracranial Embolism / Q000175:diagnosis* / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009232:Myxoma / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery