Nodular, ulcerated seborrheic keratosis.

A 31-year old, light-skinned female presented with a mildly itchy lesion, growing over the past 6 months, just inferior to the right clavicle, preceded by a dark lesion, which had been present for several years. Notably she was a swimming instructor working in a sunny environment. Examination revealed a brownish, well-defined, translucent nodule (1cm x 1cm) with an ulcerated, mildly oozing surface (Figure 1a). Lymphadenopathy was not palpable.

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