PEP. massive itching, disseminated urticarial papules and plaques. the "red" tone of the efflorescences, so distinct in white skin, is hardly visible in dark skin.
Nummular dermatitis: Multiple, reddened, confluent, roundish plaques and scratch excoriations on the back of a 76-year-old female patient; at the upper margin of the picture a punctiform, whitish, atrophic scar is visible.
PEP: Atypical minus variant with few, clearly itchy, umbilical and periumbilical scaly plaques Note: the periumbilical region is often not markedly affected (DD: pemphigoid gestationis)
Parapsoriasis en plaques, large: symptomless, well limited. disseminated stains and plaques. When the skin is wrinkled, a cigarette-paper-like pseudoatrophic architecture of the skin surface is visible (important diagnostic sign!).
Acanthosis nigricans maligna: asymptomatic brown coloration of the skin and hyperkeratosis in the left neck, décolleté and shoulder blade region existing for about 3-4 months in a 66-year-old patient with non-Hodgkin's lymphoma.
Lupus erythematosus, subacute-cutaneous. Within a few months developing, light-emphasized exanthema with multi-forms and large plaques. No feeling of illness. High titre SSA-Ac.
Kaposi's sarcoma endemic: Detailed view. reddish-brown, surface-smooth plaques and nodules. conspicuously a yellow-grey halo around the lesions (microbleeding).
Eczema atopic (overview): severe atopic eczema existing for years, mainly flexural in the adolescence, generalized for 2 years now. massive steady itching, intensified after sweating. distinct, extensive scaling and crustal deposits. numerous scratch marks.
Lichen sclerosus extragenitaler: small and large, partly sharply and partly blurredly bordered spots and plaques with parchment-like surface; in places spatter-like bleeding (chest area left).
Larva migrans: after a tropical beach holiday several weeks ago, at times clearly itchy, still increasing, linear, firm, livid red scaly plaques; in the left-sided, apparently older skin lesions, the ductal structures are no longer clearly visible; in this case flat scaly plaques.
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