Fig. 71. Retinal pigment epithelial adenocarcinoma. Low-grade carcinoma is composed of cords of pigmented epithelial cells. A few cells have prominent nucleoli. A mitotic figure is present. Tumor arose from congenital hypertrophy of retinal pigment epithelium (CHRPE) (see Fig. 74). (Hematoxylin-eosin, × 250.)