A Case of Micropsia in Bioccipital infarction Following Coronary ?Angiography

J Korean Neurol Assoc > Volume 13(2); 1995 > Article

Journal of the Korean Neurological Association 1995;13(2): 371-374.

심혈관조영술후 발생한 Micropsia 1례

정중택, 한현정, 한문구, 이상수, 한설희

충북대학교 신경과

A Case of Micropsia in Bioccipital infarction Following Coronary ?Angiography

Joong Taek Chunng, M.D., Hyun Jeong Han, M.D., Moon Ku Han, M.D., Sang Soo Lee, M.D., Seol Heui Han, M.D.

Department of Neurology, Chungbuk National University College of Medicine

Abstract

Metamorphopsia of different types have been noted in patients with posterior cerebral artery infarction, especially when the lesion is bilateral or occipitotemporal. Micropsia (objects appearing reduced in size) is commonly due to retinal disease, which causes displacement of the receptor cells. It can be hysterical in origin, but rarely micropsia is accompanied by occipitotemporal lesion. We present here a case of micropsia due to bilateral occipital infarction after coronary angiography (CAG). A 55 year-old male had experienced cortical blindness due to cerebral infarction following CAG. Brain CT reveals poorly defined low density lesions in bilateral occipital cortices. Brain SPECT shows perfusion defect in both occipital lobes with markedly decreased perfusion in left temporal area. Two weeks later, as he regains visual acuity, he complains of micropsia, I.e., his hands and fingers look small and the people outside the window looks very small like ants. This perverted visual illusion lasts about 15 days.