Churg-Strauss syndrome: encircled central granulomatous regression zone (see histological preparation 1); on the right side the progression zone is outlined (see histological preparation 2).
Airborne Contact Dermatitis: Acute, extensive, enormously itchy and burning dermatitis with irregular, extensive infestation of the exposed facial areas including the eyelids.
Scabies granulomatosa. after anti-cabial therapy persistent, severely itchy, grouped papules; individual nodules show streaky runners (see upper right) or are longitudinal in themselves.
Systemic lupus erythematosus (late onset): characteristic "collagenosis hands" with variable blue-red and livid-red patches. 83-year-old patient with known (since several years proven) systemic lupus erythematosus.
Mycosis fungoides patch stage: For the first time in the 39-year-old woman multiple, itchy, erythematous, brownish, partly scaly, partly confluent plaques appeared at the gluteal region during pregnancy and spread to the legs in the course of the pregnancy. transition from parapsoriasis en plaques to mycosis fungoides in patch stage.
Scabies (overview): itchy "rash" all over the body, existing for weeks; see previous figure. findings: disseminated, red scaly papules, partly also linearly arranged. itching at night intensified in bed warmth
Dermatosis, acute febrile neutrophilic. reddish-livid, succulent, pressure-dolent, infiltrated, solitary and partly confluent papules confluent to plaques, on the right side of the body in a 33-year-old patient. 1 week before the onset of the disease a fever attack with temperatures > 38 °C occurred.
Zoster: since 6 days increasing, left-sided headache with accompanying feeling of illness. since 3 days redness and swelling of the skin with stabbing, shooting pain. extensive erythema, blisters, scaly crusts and swelling.
Tinea pedum (moccasin type). general view: For about 13 years non-healing redness and scaling, partly with severe itching, in the area of the right foot in a 30-year-old female patient. sharply defined, marginal scaling erythema, pustular formation, swelling of the foot with limited walking ability.
Chronicdyskeratosis follicularis, also affecting the Rima ani (see detailed picture), intertriginous, whitish and red-brownish sooty, blurred, macerated, superficially rough, clearly increased in consistency, itchy and unpleasantly smelling plaques.
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