Lentigo simplex: multiple, sharply defined, light-brown pigmentation spots on light-exposed areas of the face, note the pigmentation of the red of the lips
Cheilitis simplex. Rough, reddened, painful lips with erosions, and rhagade formation in a 17-year-old adolescent. Apparently caused by continuous irritation, two large, sharply defined, smooth, brown-black spots are still visible in the area of the lower lip (post-inflammatory hyperpigmentation).
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