title: [Extravasation of contrast following coronary angiography can be misinterpretated as subarachnoid haemorrhage].
abstract: Brain parenchymal extravasation of contrast has been described after infusion of larger amounts of iodinated X-ray contrast agent. We describe a case in which a patient after infusion of 500 ml iomeprole 350 mg/ml developed neurological symptoms and a subsequent cerebral computed tomography (CT) scan was interpreted as subarachnoid haemorrhage. The patient was fully recovered within 48 hours, and a follow-up CT scan 26 hours later showed no signs of haemorrhage. In patients with sudden onset of neurological symptoms after infusion of large quantities of contrast media and a CT scan showing signs of subarachnoid haemorrhage, spinal puncture or magnetic resonance imaging should be considered prior to interventional procedures in order to verify the diagnosis.
authors.affiliation: Billeddiagnostisk Afdeling, Gentofte Hospital, Niels Andersens Vej 65, 2900 Hellerup, Denmark. laurabuskov@hotmail.com
authors.forename: Laura Katrine
authors.initials: LK
authors.lastname: Buskov
authors.forename: Nicolai
authors.initials: N
authors.lastname: Kaltoft
authors.forename: Carsten Toftager
authors.initials: CT
authors.lastname: Larsen
mesh_terms: D000368:Aged; D003287:Contrast Media / Q000008:administration & dosage* / Q000009:adverse effects; D017023:Coronary Angiography; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000175:diagnosis / Q000000981:diagnostic imaging*; D006801:Humans; D007479:Iopamidol / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives*; D008297:Male; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; C057937:iomeprol; D007479:Iopamidol