lupus erythematosus, subacute-cutaneous: a clinical picture that has existed for several years, varying in severity and severity, no significant feeling of illness; ANA+, anti-Ro Ak+, no dsDNA-Ak.
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-white papules and plaques with a verrucous surface appear.
Erythrokeratodermia figurata variabilis; detail with polycyclic, in places urticarial papules and coarse lamellar scaly ruffs; in the lower part of the picture there are anular plaques of a few days old up to 2 cm in size with a shooting-disc-like (multiform) aspect.
Pityriasis rubra pilaris (adult type) Detailed view: chronic recurrent course for years with phases of marked improvement and extensive recurrence (fig. in a thrust period).
Chilblain lupus. early stage with livid-red, surface smooth, painful plaques. clinical picture reminiscent of chilblain (frostbite lupus). no other systemic signs of lupus erythematosus.
erythema induratum. inflammatory, moderately painful, red to brown-red, subcutaneous nodules and plaques. size 2.5 cm, rarely up to 10 cm. often deep-reaching, necrotic melting with subsequent ulceration. chronic course over several years possible. healing with the leaving of brownish scars.
Acute erysipelas. acutely appeared, since a few days existing, increasing, flat, sharply defined, pillow-like raised, flaming red and painful swelling of the cheek and the left eye. distinct impairment of the general condition with fever.
Pigmented spindle cell tumor (nevus reed) - dermatoscopic picture: asymmetric, central structureless. in the periphery pseudopodia, lines and reticular lines are possible. differential diagnosis: melanoma. picture from the collection of Dr. Michael Hambardzumyan.
Insect bites (superinfected): about 14 days old, initially urticarial-blistery reaction, now plaque-shaped, itchy with central circumferential pustule and crust.
Hidradenitis suppurativa: chronically persistent, brownish or reddish livid scarring in the right axilla of a severely obese 48-year-old man; multiple, partly florid, red plaques and nodules; strong nicotine abuse for 30 years; multiple antibiotic systemic therapies were sine effectu.
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