title: Contrast-induced encephalopathy after coil embolization of an unruptured internal carotid artery aneurysm.
abstract: A 58-year-old woman developed agraphia and mild right hemiparesis approximately one month after undergoing coil embolization of an unruptured left internal carotid artery aneurysm. MRI performed on day 39 post-coil embolization showed multiple lesions in the white matter with signal hyperintensity on T2-weighted and FLAIR images in the left middle cerebral artery territory. The patient's cerebrospinal fluid exhibited an elevated protein level at 46 mg/dL; however, no other findings suggested another underlying disease. Corticosteroids were administered, and, by day 50 post-coil embolization, the clinical findings and abnormal features on MRI had improved. The patient was therefore diagnosed with contrast-induced encephalopathy after coil embolization.
authors.affiliation: Department of Neurology, Saitama Medical University International Medical Center, Japan.
authors.forename: Yuito
authors.initials: Y
authors.lastname: Nagamine
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hayashi
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Kakehi
authors.forename: Fumitaka
authors.initials: F
authors.lastname: Yamane
authors.forename: Shoichiro
authors.initials: S
authors.lastname: Ishihara
authors.forename: Akira
authors.initials: A
authors.lastname: Uchino
authors.forename: Norio
authors.initials: N
authors.lastname: Tanahashi
mesh_terms: D000783:Aneurysm / Q000175:diagnosis / Q000628:therapy*; D002340:Carotid Artery Diseases / Q000175:diagnosis / Q000628:therapy*; D002343:Carotid Artery, Internal; D002533:Cerebral Angiography / Q000009:adverse effects / Q000379:methods*; D003287:Contrast Media / Q000009:adverse effects*; D003937:Diagnosis, Differential; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008875:Middle Aged; D054038:Posterior Leukoencephalopathy Syndrome / Q000139:chemically induced* / Q000175:diagnosis
chemical_list: D003287:Contrast Media