Psoriasis vulgaris. general view: multiple, solitary or confluent, nummular or large-area, erythrosquamous plaques on the buttocks of a 49-year-old woman with psoriasis vulgaris existing since adolescence. the skin lesions continue into the rima ani.
Dyskeratosis follicularis. chronic dynamic, partly loosely disseminated, partly grouped standing, partly aggregated to plaques, brown papules first manifested in childhood. distinct itching with excoriations on the skin lesions.
Angioma, senile. multipe, chronically stationary,1-4 mm large, sharply defined, initially light red, later dark red to violet, soft, flat papules. patient reported severe seborrhea on the integument.
Linea fusca. sharply defined, linear, brown, smooth, non-pruritic hyperpigmentation in a 28-year-old pregnant woman in 24th week of pregnancy. the line runs from the symphysis pubica upwards to the epigastrium. the clinical picture is diagnostically conclusive.
Striae cutis distensae: Fresh (red), symmetrical striae after many years of internal and local (steroid inhalation) therapy with glucocorticoids for bronchial asthma.
Mycosis fungoides: tumor stage. 53-year-old man with multiple, disseminated, 1.0-5.0 cm large, in places also large, moderately itchy, clearly consistency increased, red, rough plaques.
Cellulitis, eosinophilic. early phase: Clear pruritus and dolent burning for several days. The differently sized erythema and rich red smooth plaques shown here have existed for 2 days.
Eczema atopic (overview): severe, universal (erythrodermic) atopic eczema. exacerbation phase since about 3 months. patient with rhinitis and conjunctivitis in pollinosis. total IgE >1.000IU.
scleroderma circumscripts (plaque type). large, map-like bizarrely limited, brown, smooth plaques. no recognizable inflammatory symptoms. there is no feeling of tension. no pain. comment: apparently largely aphlegmatic (healed) scleroderma.
Keloids: Flat, smooth-surfaced, firm, red nodules, increased vascular drawing. In this clinical picture a dermatofibrosarcoma protuberans can be excluded by differential diagnosis.
Xanthomas, eruptive: 0.1-0.3 cm in size, yellow-brown, flat raised, superficially smooth and shiny, disseminated, clearly consistent papules in dense seeding in a 45-year-old patient with known hyperlipoproteinemia type IV. Seeding increasing since 6 months preferably on trunk and back. Clinic is typical, histology is diagnostic.
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