Porphyria cutanea tarda: close-up. older scars marked by stars. vertical arrows: encrusted erosions after traumta; vertical arrows: bulging (subepithelial - the entire epidermis forms the firm bladder roof) fresh areactive blisters (the blisters appear as if from nowhere. no signs of inflammation!)
Dermatitis herpetiformis. multiple, disseminated standing, itchy, scratched excoriations on the right arm of a 15-year-old patient. the scratched excoriations are located at sites where grouped vesicles had appeared a few days before. overall, the disease has existed for several months and shows a chronically recurrent course.
Scleroderma systemic: edematous swelling of the hands and fingers. when stretching the fingers, white discoloration of the tense skin areas (see right index finger) occurs. Raynaud's syndrome known for several years. increased sensitivity to cold, rheumatoid joint complaints, ANA:1:620; SCL70AK+.
Eczema atopic: Skin lesions in a 22-year-old woman with generalized atopic eczema. In the area of the joint bends accentuated, blurred, extensive, grey-brown, itchy plaques. Skin field coarsened (lichenification).
Dermatitis medusica: A few minutes after the contact event, representation of linear, strongly consistency-multiplied, flat-exposed plaque with scab and vesicle formation (illustration was kindly provided by Dr. Heike Luther/Essen).
Porphyria cutanea tarda: back of the hand and dorsal forearms with small papules, excoriations and older scars and hyperpigmentation. no fresh blisters. palms free of irritation.
Chronic hand dermatitis: extensive chronic dermatitis of the back of the hand and the interdigital spaces between the fingers; distinct lichenification and dandruff formation.
Scleromyxoedema: Multiple 0.1-0.2 cm large, roundish, non follicular papules with a smooth, shiny surface; their linear arrangement is typical, which is also found in lichen myxödematosus.
Keratosis lichenoides chronica:Lichen-planus-like clinical picture with flat lichenoid plaques, on the forearm streaky excoriations due to distinct and permanent itching.
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