Contact dermatitis allergic: acute, itchy, relatively sharply defined, photoallergic (contact) dermatitis with pillow-like infiltrated, partly sharply defined, in the lateral cheek area also blurredly defined red plaques. multiple, partly solitary, partly confluent vesicles on cheeks, nose and forehead. 27-year-old female patient after application of a sunblock.
Systemic lupus erythematosus: flat, localized, moderately sharply defined, symmetrical, moderately consistent, non-scaling red plaques; conspicuous protrusion of the follicles (see arrow and inlet)
Lichtermatosis polymorphic: Occurrence of clinical symptoms a few hours to days after (single and first-time) intensive sun exposure with itching and burning, disseminated papules and papulo-pustules also papulo-vesicles.
Dermatitis, seborrheic: Chronic, therapy-resistant, psoriasiform seborrheic eczema in a 63-year-old patient; no other clinical evidence of psoriasis vulgaris.
facial granuloma: red lump, existing for 5 years now, slowly progressing in size and limited in size. small secondary plaques in the surrounding area. histological findings characterized by increasing fibrosis. findings 2 years later (see initial findings in fig., before). treatment with fast electrons. after that clear regression. no further progression. note smooth surface relief. no follicle drawing.
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.
psoriasis vulgaris. treated psoriasis vulgaris. the previously existing typical psoriatic plaques are replaced by red spots with marginal hyperpigmentation. the treatment was carried out locally with dithranol [cignolin]. scaling no longer present. the brewing discoloration of the lesional surroundings are reversible discolorations of the nromal skin by diathranol. the diagnosis "psoriasis" is doubtless due to the known anamnesis.
Granuloma faciale: Multiple, reddish-brown, blurred and irregularly configured, symptomless plaque in a 52-year-old man. No known secondary diseases, no drug anemia. The finding has been present for several months and is slowly progressive. Detailed view of multiple facial plalues.
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