A Clinical Atlas of 101 Common Skin Diseases
Chapter 1. Acanthosis Nigricans
Integration: Unifying Concept
New! Additional Images
Widespread acanthosis nigricans. This implies concurrence of an internal malignancy.
Confluent papillomatosis of the lips and buccal mucosa.
Bilateral involvement of the axillae in this obese young man with an endocrine disorder.
The neck is a favorite site.
Closely set tiny papules in linear array.
Lesions situated over joints. Note how dark are the fingers in contrast to the rest of the skin.
Pigmented plaque with mammillated surface.
Pigmented, slightly elevated plaque with a gently papillated smooth surface, in this instance punctuated by atrophic striae.
Polypoid excrescences, as well as subtle papules. Grooves that traverse plaques represent accentuation of skin lines.
Ill-defined plaque, thrown into folds, made up of prominent, smooth-surfaced papules, some of them polypoid.
Pigmented plaque in which skin folds are accentuated.
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