[Sectorial racemose vascular malformation of the iris].

A sectorial racemose vascular malformation of the iris in the left eye of a 32-year-old man is reported: a dilated episcleral artery disappeared in the limbal sclera; it reappeared in the chamber angle and after dichotomous branching, continued toward the pupil. The peripupillary capillaries of this sector were dilated, and drained into dilated iris veins.