Purpura pigmentosa progressiva: aetiologically unexplained (medication?) pronounced clinical picture that has been changing for several months with symmetrically distributed, disseminated, non-itching, yellow-brown, spots (detailed picture).
Airborne Contact Dermatitis: Acute, massively itching and burning dermatitis, which is limited to the freely carried skin areas, the lower border only blurred (leaking eczema foci), a typical feature of contact allergic eczema.
Erythromelalgia. seizure-like, painful, hyperemic, reddened and swollen skin of the hands and feet with increased sensitivity to heat. there is burning pain and oedema.
Purpura anularis teleangiectodes: clinical picture that has existed for several months with anular, borderline reddish-brown (not push-off) spots and plaques; no itching
Dermatomyositis. Gottron papules in a 72-year-old woman. Smaller, striated, reddish-livid papules appear, which confluent in the region of the end phalanges to form flat plaques. Strongly pronounced nail fold capillaries on dig. III and V. The Keining sign was strongly positive in the clinical examination.
Urticaria pigmentosa: general view: about 0.5-1.0cm large, disseminated, oval or round, brownish-red spots. only when rubbed, increased redness of the spots with accompanying itching. also in warm showers or baths increased redness and clearly palpable elevation of the lesions.
Addison's disease: homogeneous hyperpigmentation of the back in a 35-year-old man; especially accentuated on the lateral parts of the back and in the lumbar region. The patient made a statement typical for Addison's disease: "Last summer's suntan did not recede as usual" The transverse light stripes of the lumbar region correspond in appearance to striae cutis distensae.
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