Purpura pigmentosa progressica (type: Purpura anularis teleangiectodes): brown-red anular, also cocard-like (ring-in-ring structure) by confluence also serpiginous foci. no significant itching. sporadically also largely faded only shadowy spots.
Basal cell carcinoma ulcerated: Slowly growing, painless lump on the bridge of the nose that has existed for a long time. 3 months of crust formation and weeping. 1 week after the crusts have come off, this finding.
Acrodermatitis chronica atrophicans. livid, blurred, variable coloured erythema of the left hand in comparison to the healthy right hand. skin atrophically shiny, hyperesthetic.
Erysipelas bullöses: acuteareal, sharply defined, painful reddening and plaque and areal blistering in the area of the lower leg. entry portal: macerated tinea pedum. fever, chills, lymphangitis and lymphadenitis also exist.
Pityriasis lichenoides et varioliformis acuta. 15-month-oldchild. 0.2-0.4 cm large, symmetrically arranged, only slightly itchy, red, surface-smooth and eroded papules and papulovesicles disseminated on the trunk and extremities for a few days.
Squamous cell carcinoma of the skin: ulcerated, spinocellular carcinoma of the lower leg, which has long been misunderstood as an ulcer (cruris) and thus has been treated unsuccessfully. Remarkable: Only slight pain!
Merkel cell carcinoma. solitary, fast growing, asymptomatic, bright red, coarse, shifting, smooth lump with atrophic surface. the appearance in the area of UV-exposed sites is typical.
Chondrodermatitis nodularis chronica helicis. solitary, chronically inpatient, 0.4 cm high, sharply defined, coarse, strongly pressure-dolent, red, in the centre grey-white, rough papules. crusty support. because of pain the patient is not able to sleep on this ear.
Dermatitis chronic actinic: Chronic laminar eczema reaction which is essentially limited to the exposed skin areas Typical of chronic actinic dermatitis and thus distinguishable from a toxic light reaction (type acute solar dermatitis) is the blurred transition (eczematous scattering reactions) from lesional to healthy skin.
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