Lichen simplex chronicus indark skin. several lesions with 0.1-0.2 cm large, marginally disseminated, firm brown-black papules confluent in the centre of the lesions. permanent itching.
Mycosis fungoides: Plaque stage. 53-year-old man with multiple, disseminated, 1.0-5.0 cm large, in places also large-area, moderately itchy, distinctly increased consistency, red rough plaques. development over 4 years. initial findings.
Contact dermatitis toxic: Detail enlargement: Strong hyperkeratosis on reddened skin as well as isolated small rhagades and erosions on the right foot of a 46-year-old patient.
Keratosis areolae mammae naeviformis: Chronic stationary plaque in a 45-year-old man, unchanged for years, limited to the nipple and areola, moderately increased in consistency, without symptoms, brown, rough (warty) plaque.
Hair leukoplakia orale. "Classic finding" with completely sympotmless, not strippable, flat, white plaques in the area of the lateral edge of the tongue in HIV-infected persons.
Erythema induratum. 52-year-old secretary has been suffering for 3 years from this moderately painful lesion running in relapses. Findings: Clinical examination o.B. Local findings: 10 cm in longitudinal diameter large, firm plaque, interspersed with cutaneous and subcutaneous nodules. In the centre scarring, on the edge deep, poorly healing ulcerations (here crusty evidence).
Erythema anulare centrifugum. detail view: clearly borderline (well palpable border) and centrally fading plaque on the abdomen of a 54-year-old patient. underlying disease: M. Wegener.
Melanoma, malignant, acrolentiginous: a slow-growing, previously asymptomatic, multicentric hyperpigmentation that has been present for many years; for about 1 year, increasing nodule formation with a tendency to bleed.
Angiokeratoma corporis circumscriptum: non-syndromal mixed capillary/venous malformation with verrucous plaques and nodules. First manifestation in early childhood. Continuous growth since then.
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