R etinoma is a benign, elevated, gray, translucent retinal mass with cottage cheese–like calcification and hyperpigmented retinal pigment epithelium. Histopathological features includeabundant fleurettes and nonproliferative cells. We report a case in which an underlying retinoma was revealed by collapse and massive vitreous dispersion of the overlying unilateral retinoblastoma after 1 cycle of...
