UVEA Choroidal melanoma

● Statistically of every 500 choroidal nevi one will undergo malignant transformation if followed for 10 years

● There are number of risk factors for such melanoma trans-formation, the most important of which appears to be initial thickness of > 2 mm

● Carol Shields at Wills Eye Hospital (USA) has done a lot of work in this area. She identifies 5 factors associated with risk of growth of small choroidal lesions:1. tumor thickness greater than 2.0 mm 2. subretinal fluid3. visual symptoms4. orange pigment5. posterior tumor margin touching the disc

These five factors can be easily rememberd with the mnemonic: To Find Small Ocular Melanoma(= Thickness, Fluid, Symptoms, Orange pigment, Optic Disc Margin)

These images were originally published in the Retina Image Bank. Henry J. Kaplan, MD Mayo Clinic Jacksonville, Florida. Year 2013; Image Numbers 7799 and 10386. © the American Society of Retina Specialists. Video�