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. Secondary vasoproliferative tumor can occur in Coats disease (16%), and its location can vary depending on the location of the telangiectasia, as in our patient. Laser photocoagulation to the telangiectasia and cryotherapy to the vasoproliferative tumor was advised in this patient.
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Published online: March 30, 2021
Accepted: March 2, 2021
Received in revised form: February 20, 2021
Received: January 19, 2021
© 2021 Canadian Ophthalmological Society. Published by Elsevier Inc. All rights reserved.