Nail psoriasis: unspecific nail dystrophy (which is also found in this way in chronic hand dermatitis), caused by paronychial infestation of the thumbs.
Erythema nodosum (affection of the upper and lower extremities): acute, multiple inflammatory, painful, clearly consistency increased plaques and nodules; accompanying arthritis of the right ankle joint.
Lupus erythematodes chronicus discoides:cutaneous chronic lupus erythematosus. years of course with circumscribed red scarring plaques (circle - with whitish atrophic area without follicular structure): arrow: dermal melanocytic nevus.
Special form: Mycosis fungoides follikulotrope: 10-year-old girl with generalized folliculotropic Mycosis fungoides. foudroyant course of the disease which made a stem cell transplantation necessary.
Nummular dermatitis: chronic, for 8 weeks existing, localized on the back of the hand, approx. 6 cm in size, reddish, raised, partly eroded, partly crusty plaques in a 47-year-old man; no evidence of psoriasis vulgaris or atopic diathesis.
Pemphigus chronicus benignus familiaris. Greasy, sharply defined, rough plaque in the area of the armpit, interspersed with multiple fissures. Striae (chronic glucocorticoid application) appear in the surrounding area.
Erythema gyratum repens: Detail of the rim area of the ring structure. clearly palpable (like a wet wool thread) rim area with raised, inwardly directed ruffle. striking "multizonality" with a second only discretely visible inner ring formation.
Lichen planus verrucosus: detailed view of the distal parts. marginal smaller partly solitary parts aggregated reddish shining papules. crusts caused by scratching effects (indication of the obviously "punctual" localized itching). the blown off parts point to atrophic areas (scarring).
Basal cell carcinoma superficial: Slowly growing, symptom-free plaque with adherent white scales that has been present for several years; a shiny marginal structure is visible on the left margin.
eyelid dermatitis atopic: recurrent, circumscribed itchy eczematous reaction in this 20-year-old patient with known atopic diathesis. contact allergy is (already clinically) unlikely because of the circumscribed, sharply defined plaque. DD: atpyically localized psoriasis .
Graft-versus-Host-Disease, chronic. 56 years old patient with z.n. bone marrow transplantation 2 years ago. since 1 year increasing hardening of the skin. poikilodermatic picture with extensive whitish irritations, reticular hyperpigmentation and bizarre red spots. atrophic (parchment-like) surface epithelium with fine desquamation.
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