Mononucleosis, infectious. generalized, non-itching exanthema in a 17-year-old woman. painful lymphadenopathy (neck, nape of neck). little itching, urticarial, small spotted, confluent exanthema in places with distinct emphasis on face and trunk.
Urticaria pigmentosa adultorum: Classical form of cutaneous mastocytosis (excess of mast cells in the skin) with multiple red patches and wheals (positive Darier sign, due to the friction of the trousers) clearly protruding in the buttock area, and light brown in the adjacent lumbar area, 0.1-0.3 cm in size.
Lupus erythematosus, subacute-cutaneous. Within a few months developing, light-emphasized exanthema with multi-forms and large plaques. No feeling of illness. High titre SSA-Ac.
Mastocytosis of the urticaria pigmentosa type: generalised infestation of the integument with disseminated brown spots, patches, papules and plaques, which in some places congregate to form larger areas
Dermatitis solaris. almost universal, succulent erythema in a 30-year-old patient (skin type II) after intensive, several hours of sunbathing in the midday sun. accompanying strong sensation of heat, chills and circulatory weakness about 7 hours after exposure to the sun.
Urticaria pigmentosa: Generalized, macular, livid-red to brownish, partly confluent "exanthem-like" clinical picture on the trunk of a 41-year-old woman.
Dermatitis, phototoxic. general view (stage of healing): Strip-shaped, dark brown hyperpigmentations, partly with healing blisters and crusts on the left-sided trunk of a 30-year-old female patient. Initially painful, itchy blisters on reddened skin along the contact with the triggering plant parts existed after plant contact and subsequent UV exposure.
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