Acute spontaneous urticaria with angioedema; since a few days rather discreetly developed urticaria with recurrent angioedema of the eyelids (which characterizes the clinical picture).
erythema infectiosum. after slight "flu-like" infection intensive redness (and swelling) of both cheeks (cheek whistle face). 2 days later little symptomatic exanthema with anular erythema on the arms. cervical lymphadenopathy. laboratory: o.B.
Merkel cell carcinoma. solitary, fast growing, asymptomatic, bright red, coarse, shifting, smooth lump with atrophic surface. the appearance in the area of UV-exposed sites is typical.
Dermatitis chronic actinic: Chronic laminar eczema reaction which is essentially limited to the exposed skin areas Typical of chronic actinic dermatitis and thus distinguishable from a toxic light reaction (type acute solar dermatitis) is the blurred transition (eczematous scattering reactions) from lesional to healthy skin.
Acne vulgaris (overview): severe clinical picture with inflammatory papules, papulo-pustules and pustules in a 17-year-old patient; increasing course of the disease since 2 years. extensive scarring beginning in the central cheek area. picture of acne vulgaris (type: acne papulo-pustulosa, grade IV). classic indication for systemic isotretinoin therapy!
Naevus flammeus (Port-wine stain): congenitalerythema in the facial region (capillary vascular malformation), localized in V2 distribution, completely without symptoms. 4-month-old boy, developed according to age.
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