Secondary vasoproliferative tumor in adult-onset Coats disease

Abstract

A 20-year-old woman noted a 1-month history of floaters in her left eye. Ultra-widefield multicolor imaging and fluorescein angiography (Figure A, B) showed classic findings of Coats disease (telangiectasia, exudation, subretinal fluid, and peripheral nonperfusion) and an additional yellow-red dome-shaped mass of 3 mm thickness that corresponded to a secondary vasoproliferative tumor encircled by gravitating lipid exudation. Coats disease usually occurs in children but can affect older patients.