Melanoma malignes, type SSM: 2.8x 1.8 cm large black plaque with a nodular part on the back; small satellite; inlet close up and reflected light microscopic image.
Pemphigoid, bullous. general view: multiple, disseminated, 0.3-2.0 cm large, taut, mostly filled with clear content, partly hemorrhagic blisters on erythematous altered surroundings. multiple small erosions and crusts still exist.
Vitiligo : On the right side of the picture a halo-nevus; in the larger vitiligo focus above the lumbar spine a largely depigmented melanocytic nevus is visible.
Mycosis fungoides tumor stage: Mycosis fungoides has been known for years, for about 3 months there have been intermittent attacks of less symptomatic plaques and nodules
Pityriasis rosea: A maculo-papular to plaque-like, slightly to moderately scaly exanthema with coin-like filled foci that persists for a few weeks; in the breast area also large, anular formations.
Dermatosis, acute neutrophils: reddish-livid, succulent, pressure-dolent, infiltrated, solitary and partly confluent papules, which confluent to plaques. 1 week before the onset of the disease a fever attack with temperatures > 38 °C occurred.
Becker nevus: General view: Approx. 20 x 26 cm measuring, homogeneously pigmented, hairless, melanocytic, marginal spatter-like frayed pigmentation on the left upper arm/shoulder of a 14-year-old adolescent. The pigmentation had developed in childhood and had gradually grown over the entire shoulder and upper arm. Clear dark coloration after sun exposure. Incident light microscopy showed no evidence of malignancy.
Pityriasis lichenoides et varioliformis acuta. after febrile infection acutely occurring, "colorful" exanthema with differently sized papules measuring 0.2-0.8 cm, papulovesicles, erosions, and encrusted ulcers. healing with formation of varioliform scars.
Bowen's disease: Chronically stationary, slowly increasing in area and thickness, sharply defined, meanwhile clearly increased in consistency, symptomless, red, rough, partly scaly, partly erosive, partly crusty plaques on the left thumb extension side of a 63-year-old man; characteristic is the occurrence mainly in the area of light-exposed skin areas.
Bowen, M.. 22-year-old, 4 x 2 cm, slightly progressive, erythematous, scaly plaque on the back of a 68-year-old patient, which was for a long time misjudged as chronic inpatient psoriasis vulgaris and treated accordingly.
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