Nevus, melanocytic type: Dysplastic melanoytic nevus, growth in the last 6 months, asymmetry of the tumor and the different coloration should in this case lead to an excision and histopathological examination to exclude malignancy (malignant melanoma).
Candidosis intertriginous: 75-year-old woman. for nearly 2 weeks red plaque isolated only in the left axilla. distinct itching. notice the marginal satellite nodules. occasionally small pustules.
Lichen planus (classic type): for several months persistent, red, itchy, polygonal, partly confluent, red, smooth, shiny (in places anular) papules on the trunk. detail view.
Acne, keloid acne. stringy, coarse, brownish pigmented elevations in the chest area in a 24-year-old female patient on healed acne vulgaris. Medical history and clinic are pathognomonic.
Necrobiosis lipoidica: 44-year-old woman. 10 years ago, fracture of the ankle joint with surgical treatment, for about 8 years beginning changes in the scars on the inner and outer ankle. Histologically, a necrobiosis lipoidica could be confirmed. On request, she was under constant diabetological control, since both previous pregnancies had been accompanied by insulin-dependent gestational diabetes.
Dyskeratosis follicularis: disseminated, chronically stationary, 0.1-0.2 cm in size, flatly elevated, moderately firm, non-itching, rough, red, scaly papules which unite at the top to form a blurred plaque; skin lesions have existed in varying degrees in this 53-year-old patient for several years.
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