Scleromyxedema. 52-year-old patient shows a diffuse thickening and discreet reddening of the facial skin. Especially in the area of the glabella there is a bulging overlapping thickening of the skin folds.
Molluscum contagiosa: colourful picture with multiple, 0.2-0.3 cm large, yellowish, firm, shiny, sometimes itchy nodules, sometimes small scars and crusty papules (spontaneously healed molluscs).
Elastoidosis cutanea nodularis et cystica: multiple, chronic inpatient, 0.2-0.4 cm large, symptomless, black papules (comedones) and yellow papules and nodules. 72-year-old man with massive chronic UV exposure over decades.
Folliculitis decalvans. scarring hair loss that has been progressing for several years, with itching and occasional pain. in addition to purulent folliculitis, scaly tufts of hair with surrounding erythema appear.
Acne excoriée des jeunes filles. multiple, symmetrically distributed, increasing, inflammatory, red papules and pustules as well as comedones and small scars in a 27-year-old woman. originally there were significantly fewer papules and pustules. for about 4 years the patient has tried to express the papules and pustules 2-3 times/week for cosmetic reasons.
Insect bite; superficial and deep, spot-like distributed, perivascularly oriented, predominantly lymphocytic infiltrate (mixed with a few eosinophilic granulocytes).
Syphilis: papular syphilis of the soles of the feet. loosely distributed reddish-brown scaly, symptomless papules on both palms. these changes are a section of a generalized papular exanthema.
Fibrokeratome, acquired digital. benign, mainly on the fingers, more rarely on the toes, very slowly growing exophytic tumor of the adult with consecutive, displacing nail dystrophy. numerous Beau-Reils transverse furrows as a sign of intermittent growth disturbance.
Acne, steroid acne. general view: For 4 months persistent, disseminated, 1-4 mm large, reddish papules in a 20-year-old patient who has been systemically treated with glucocorticoids for years because of an underlying vasculitic disease. dose at first manifestation of the skin changes: 40 mg prednisolone p.o.
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