Psoriasis seborrhoeic type: Chronic recurrent, sharply defined red spots and plaques, which are localized in the chest area of a 70-year-old man and run along the anterior sweat channel.
Granuloma anulare subcutaneous type Multiple, painless, deep cutaneous, skin-coloured nodules on the sides of the fingers (Granuloma anulare subcutaneum).
Differential diagnosis "candidiasis intertriginous" : present psoriasis intertriginosa: infection-related acute relapsing activity of a long term known psoriasis vulgaris.
Lichen planus exanthematicus: for several months persistent, itchy, generalized, dense rash with emphasis on the trunk and extremities (face not affected); as single florescence a 0.1-0.2 cm large, rounded, brown to reddish papule with a smooth but also woolly surface appears.
transient acantholytic dermatosis. detail enlargement from previous overview. initial papules, about 1-2 mm in size, deep red with slightly eroded, occasionally scaly surface, characterize the picture. in addition, older plaques (top right) resulting from confluent papules with slight marginal scaling are visible. the nikolski phenomenon is negative.
Lichen planus exanthematicus. 4 months old, distinctly itchy exanthema with pinhead-sized, slightly raised, partly isolated, but also aggregated to larger plaques, smooth, shiny, red papules. Streaky arrangement of the efflorescences in scratch or rub marks (Koebner phenomenon; seeleft half of the buttocks).
Eczema atopic in childhood: impetiginized (detection of Staphylococcus aureus) chronic auricular rash in an 8-year-old boy with previously known atopic eczema; furthermore: seasonal atopic rhinitis and conjunctivitis.
Acute spontaneous urticaria with angioedema; since a few days rather discreetly developed urticaria with recurrent angioedema of the eyelids (which characterizes the clinical picture).
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