A B C D E F G H I K L M N O P R S T U V W X Retinal Neoplasms Synonym(s) - Cancer of the Retina - Cancer, Retinal - Neoplasms, Retinal - Retinal Cancer - Retinal Tumors Definition: Tumors or cancer of the RETINA. Broader term(s) Eye Diseases Retinal Diseases Retinal Neoplasms See also Retinoblastoma MeSH © U.S. National Library of Medicine®.