RT Journal Article SR Electronic T1 Cortical Blindness after Contrast-Enhanced CT: Complication in a Patient with Diabetes Insipidus JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1114 OP 1116 VO 24 IS 6 A1 Mentzel, Hans-Joachim A1 Blume, Jörg A1 Malich, Ansgar A1 Fitzek, Clemens A1 Reichenbach, Jürgen R. A1 Kaiser, Werner A. YR 2003 UL http://www.ajnr.org/content/24/6/1114.abstract AB Summary: Transient cortical blindness is an uncommon but well-known complication following cerebral angiography. One possible cause of this complication is an adverse reaction to contrast agent, resulting in an osmotic disruption of the blood-brain barrier that seems to be selective for the occipital cortex. We report the case of a 16-year-old male patient with cortical blindness after intravenous application of nonionic contrast agent during CT angiography performed because of seizure that was attributed to thrombosis of the basilar artery on the basis of clinical findings. To our knowledge, the development of cortical blindness after CT angiography has not been described in the literature. The patient’s symptoms were triggered by hyponatriemia and diabetes insipidus.