title: A case of nonconvulsive status epilepticus with a reversible contralateral cerebellar lesion: temporal changes in magnetic resonance imaging and single-photon emission computed tomography finding.
abstract: A 67-year-old woman was brought to our institution because of unconsciousness. Clinical and electrophysiological findings lead us to diagnose her with nonconvulsive status epilepticus. Initial magnetic resonance imaging revealed hyperintensity in the left cerebral cortex and the right cerebellum on diffusion-weighted image and fluid-attenuated inversion recovery (FLAIR). Single-photon emission computed tomography showed increased blood flow in the left frontal cerebrum but not in the right cerebellum. The hyperintensity in the left cerebrum on the follow-up FLAIR was still present. The contralateral cerebellum remained undamaged even though the blood flow was not increased in this region because the excitotoxicity there was far lesser than that in the cerebrum.
authors.affiliation: Department of Neurology and Cerebrovascular Medicine, Saitama Medical University, International Medical Center, Saitama, Japan. Electronic address: yooe@saitama-med.ac.jp.
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Ohe
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hayashi
authors.forename: Ichiro
authors.initials: I
authors.lastname: Deguchi
authors.forename: Takuya
authors.initials: T
authors.lastname: Fukuoka
authors.forename: Hajime
authors.initials: H
authors.lastname: Maruyama
authors.forename: Yuji
authors.initials: Y
authors.lastname: Kato
authors.forename: Norio
authors.initials: N
authors.lastname: Tanahashi
mesh_terms: D000368:Aged; D000927:Anticonvulsants / Q000627:therapeutic use; D058256:Brain Waves; D002531:Cerebellum / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000503:physiopathology; D002560:Cerebrovascular Circulation; D038524:Diffusion Magnetic Resonance Imaging; D004569:Electroencephalography; D005260:Female; D006801:Humans; D000077287:Levetiracetam; D055420:Perfusion Imaging / Q000379:methods*; D010889:Piracetam / Q000031:analogs & derivatives / Q000627:therapeutic use; D011237:Predictive Value of Tests; D013226:Status Epilepticus / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000503:physiopathology; D013997:Time Factors; D015899:Tomography, Emission-Computed, Single-Photon; D016896:Treatment Outcome
chemical_list: D000927:Anticonvulsants; D000077287:Levetiracetam; D010889:Piracetam
keywords: Blood flow; crossed cerebellar diaschisis; magnetic resonance imaging; nonconvulsive status epilepticus; single-photon emission computed tomography