Choroidal Nevus
OVERVIEW
A nevus is typically a flat, benign, pigmented area that may appear inside the eye or on its surface. Nevi commonly appear on the choroid (the layer just behind the retina, the iris, and the conjunctiva. Nevi are similar to freckles, and do not typically change or grow.
SIGNS AND SYMPTOMS
- Brownish, freckle-like spot
- Usually flat
DETECTION AND DIAGNOSIS
Nevi of the conjunctiva or iris can be detected with a slit lamp microscope. If the nevus occurs within the eye, it is evaluated with an ophthalmoscope.
TREATMENT
Nevi are usually harmless, but it’s always wise to monitor them for changes. This can be done with photos and sometimes ultrasound. The doctor will document the size, shape and whether the nevus is elevated. In rare cases, the nevus must be biopsied and examined for melanoma (cancer) cells.
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