Pigmented lesion of the iris
ectopia uvea in a patient with iris naevus
iris melanoma with intrinsic blood vessels
There is a pigmented lesion on the iris (describe the colour and the edge) which is flat/elevated. Look for signs of malignancy
such as abnormal iris vessels around or within the tumour, ectopia uvea and sectorial cataract at the site of the lesion.
Note: ectropia uvea may occur in iris lesion which are benign.
- mention that you like to examine the posterior segment for any extension; alternatively, the iris lesion (especially if it
is at the angle) may be an extension from a lesion behind the iris
- look at the sclera on the side of the lesion for any dilated vessels (sentinel vessels) indicating that there may be a
lesion at the ciliary body with anterior extension.
1. What is the differential diagnosis of pigmented iris lesion(s)?