Acanthosis nigricans (benigna): generalized clinical picture with pigmented, blurred, symptomless plaques in the axillae, genital area and inguinal regions.
Acne papulopustulosa:Multiple, inflammatory papules and pustules, some of them crusty, localized periorally and perinasally in the face of a 16-year-old adolescent.
Interstitial granulomatous dermatitis with plaques. 10 months ago, erythematous plaques, initially europiece-sized, appeared for the first time, later on size progressive and confluent skin lesions on the left mamma in a 38-year-old female patient. In the lower outer as well as in the upper outer quadrant of the mamma discrete, bizarrely configured, reddish-brown plaques and multiple telangiectasias are visible.
Psoriasis of the hands (Palmae, fingers): Detailed picture with periungual infestation; here, a clear nail dystrophy is covered with an artificial nail.
Several acquired melanocytic nevi in a 65 years old man. Especially the two conspicuous large melanocytic nevi did not show any changes in the last years. There is no need for surgical removal. Annual clinical controls are necessary.
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