Focal Aggregates of Normal or Near Normal Uveal Melanocytes (FANNUMs) in the Choroid. A Practical Clinical Category of Small Ophthalmoscopically Evident Discrete Melanocytic Choroidal Lesions

Abstract

Multiple types of discrete melanocytic choroidal lesions are currently recognized, including benign choroidal nevi, choroidal malignant melanomas, patches of choroidal melanocytosis, and foci of choroidal melanocytes stimulated paraneoplastically by a systemic nonmelanoma malignant neoplasm. In 2020, I proposed the term “FANNUM (focal aggregate of normal or near normal uveal melanocytes) of the choroid” [1] to categorize an additional specific type of discrete melanocytic choroidal lesion that exhibits the following clinical features: