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.
Malasseziafolliculitis: Disseminated follicle-associated inflammatory papules and papulopustules on the back of a 53-year-old female patient with melanocytic naevi and isolated seborrheic keratoses.
Scleromyxoedema. 52-year-old male patient. Increasing, moderately itchy skin lesions for 5 years. Thigh with multiple, site scattered lichenoid papules.
Hand-Foot-Mouth Disease: since about 1 week, painful, blisters, pustules and papules on hands and feet, about 1-2 weeks before, unspecific flu-like prodrome.
Hemangioma targetoides hemosiderotic: asymptomatic, violet to brownish papules and nodules surrounded by a pale zone, which is externally enclosed by an ecchymotic ring (shooting target shape) Illustration from the collection of Dr. med. Michael Hambardzumyan.
Acne cystica, densely sown, yellowish-white, skin-coloured sebaceous retention cysts and numerous "ice-pick" scars in the cheek and chin area of a 34-year-old woman.
Porokeratosis Mibelli. gradually progressive finding with solitary, 0.1-0.2 cm large, symptom-free, yellow-brown horny papules (primary lesion), which have been present for years. As shown here, they show surface and thickness growth. On the back of the foot the papules have (coincidentally) merged into a coarse plaque with a spiny surface.
Porokeratosis superficialis disseminata actinica: disseminated, brownish-yellowish, sharply defined, hyperkeratotic nodules/plaques localized on the extensor sides; clear actinic damage to the skin with multiple lentigines.
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