Clinical Survey of 3680 Iris Tumors Based on Patient Age at Presentation

Objective To report the spectrum of iris lesions based on patient age at presentation. Design Retrospective, nonrandomized, single-center case series. Participants We included 3680 iris tumors in 3451 patients. Methods Chart review. Main Outcome Measures Diagnostic category based on age. Results The mean age at presentation was 48 years and there were 449 (12%) tumors in children (≤20 years), 788 (21%) in young adults (21–40 years), 1308 (36%) in mid adults (41–60 years), and 1135 (31%) in senior adults (>60 years). Of 3680 tumors, the diagnostic category was cystic (n = 768; 21%) or solid (n = 2912; 79%). The cystic tumors originated from iris pigment epithelium (IPE; n = 672; 18%) or iris stroma (n = 96; 3%). The solid tumors included melanocytic (n = 2510; 68%) and nonmelanocytic (n = 402; 11%). The melanocytic tumors comprised nevus (n = 1503; 60%), melanocytoma (n = 68; 3%), melanoma (n = 645; 26%), and melanocytosis (n = 64; 3%). Of 2510 melanocytic tumors, the first and second most common diagnoses by age (children, young adult, mid adult, senior adult) were nevus (53%, 57%, 63%, and 63%, respectively) and melanoma (17%, 27%, 26%, and 27%, respectively). The nonmelanocytic tumors included categories of choristomatous (n = 4;