This 70YO male presented with this nasal choroidal nevus.
Other than being near the optic nerve, our patient has none of the risk factors for transformation to uveal melanoma. The presence of drusen also indicates chronicity and low risk for malignant transformation. We are following him yearly.
Learning Points:
Clinical characteristics of choroidal nevi at risk for progressing to a uveal MM were described by Shields et al. (Ophthalmology 1995;102:1351-1361). The most recent version of this famous acronym, To Find Small Ocular Melanoma Doing Imaging (TFSOM-DIM, Retina 2019;39:1840-1851), is:
To (Thickness >2mm)
Find (Subretinal Fluid)
Small (Symptoms, vision <= 20/50)
Ocular (Orange pigment)
Melanoma (Melanoma hollow)
DIM (DIIaMeter >5mm)
