lupus erythematodes chronicus discoides: 18-year-old otherwise healthy patient. skin lesions since 12 months, gradually increasing, no photosensitivity. disseminated, chronic, touch-sensitive, red , differently sized plaques with rather discrete scaling. histology and DIF are typical for erythematodes. no positive ANA and ENA.
Lupus erythematosus acute-cutaneous: symmetric red spots, patches and plaques on the face, neck and upper trunk, existing for several weeks; lateral image.
Contact dermatitis toxic: exogenous, toxic, acute reddening of the hairy scalp, limited to the site of exposure of the applied "hair growth agent"; secondary findings are alopecia androgenetica.
lupus erythematodes chronicus discoides: 25-year-old otherwise healthy patient. variable now discrete skin lesions; for 12 months. only low photosensitivity. multiple, touch-sensitive, red, plaques. histology and DIF are typical for erythematodes, ANA and ENA negative.
Lyme borreliosis: picture of acrodermatitis chroica atrophicans. flat, partly livid, partly lilac erythema in the area of the entire upper body after a tick bite about 14 months ago. serological evidence of a borrelia infection. stage III of Lyme borreliosis.
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