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.
Erythema anulare centrifugum: characteristic (fresh) lesions with peripherally progressive plaques, which are peripherally palpable as well limited (like a wet wolfaden) Histological clarification necessary.
lupus erythematosus acute-cutaneous: clinical picture known for several years, occurring within 14 days, at the time of admission still with intermittent course. anular pattern. in the current intermittent phase fatigue and exhaustion. ANA 1:160; anti-Ro/SSA antibodies positive. DIF: LE - typical.
Morphea type or plaque type of circumscribed scleroderma: slightly idurated irregularly bordered white plaque with a parchment-like, scale-free surface; discreet, light red rimythema.
Sarcoidosis: anular or circulatory chronic sarcoidosis of the skin. persisting for several years. onset with small symptomless papules with continuous appositional growth and central healing. no detectable systemic involvement.
Erythema anulare centrifugum: Characteristic single cell lesion with peripherally progressive plaque, which flattens centrally and is only recognizable here as a non raised red spot.
Pityriasis rosea: clearly visible primary medallion in the right axilla. the red colour typical of the flock in white skin is completely absent in dark skin.
Psoriasis inversa: 69-year-old woman. 6 months at presentation. no manifestations of psoriasis present on the remaining integument. family history but positive: son with known psoriasis vulgaris.
Bilateral naevus verrucosus in an infant. No symptoms. Psoriasiform aspect of the plaques running in the Blaschko lines, scattered, reddish, slightly infiltrated, scaly.
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