title: [A fatal case of anaphylactoid shock after administration of nonionic contrast medium].
abstract: We report a case of fatal anaphylactoid shock caused by a CT examination using nonionic contrast medium. A 79-year-old female patient was diagnosed with right recurrent nerve plasy. There was no known history of drug allergy or exposure to contrast medium. Approximately 50 seconds after contrast medium bolus injection began, the patient was noted to be apneic. Despite cardiopulmonary resucitation, the patient died. An autopsy demonstrated marked laryngeal edema and showed extensive mast cell infiltration.
authors.affiliation: Department of Radiology, Miyazaki Prefectural Nichinan Hospital.
authors.forename: Tokiyoshi
authors.initials: T
authors.lastname: Shimizu
authors.forename: Yuhei
authors.initials: Y
authors.lastname: Kawasaki
authors.forename: Eiji
authors.initials: E
authors.lastname: Ochiai
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kisanuki
mesh_terms: D000368:Aged; D000707:Anaphylaxis / Q000139:chemically induced* / Q000473:pathology; D001344:Autopsy; D003287:Contrast Media / Q000008:administration & dosage / Q000009:adverse effects*; D004487:Edema / Q000139:chemically induced; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D007472:Iohexol / Q000008:administration & dosage / Q000009:adverse effects* / Q000031:analogs & derivatives*; D007820:Laryngeal Mucosa / Q000166:cytology / Q000473:pathology; D008407:Mast Cells / Q000473:pathology; D014135:Tracheal Stenosis / Q000139:chemically induced
chemical_list: D003287:Contrast Media; D007472:Iohexol; C038192:iopromide