Choroidal Nevus
Clinical Features:
They are typically darkly pigmented, small, flat, and with well-defined borders (Fig. 21.1.1). Overlying drusen, present in Bruch’s membrane, are a common finding. Some nevi may have slight elevation (Fig. 21.1.2). They can occur throughout the fundus but are usually seen in the posterior pole. Accumulation of subretinal fluid, minimal growth over time, and alterations in pigmentation can occur in the absence of malignant transformation.
Figure 21.1.1 Wide-angle image of a flat nevus shows a darkly pigmented, well-circumscribed flat choroidal lesion in the superior macula.
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