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.
Adenoma sebaceum: diffuse distribution of skin-coloured, shiny papules and plaques. conspicuously bizarre telangiectasias, partly present in the papules and in the surrounding area. no folliculitis, no comedones.
Adenoma sebaceum: disseminated, densely packed, chronically stationary (no dynamic development), completely asymptomatic, reddish-brownish, 0.1-0.4 cm in size, red, reddish-brown and skin-coloured, individually standing and aggregated papules with symmetrical, centrofacial emphasis; slight seborrhoea; no comedones.
type i neurofibromatosis, peripheral type or classic cutaneous form. since puberty slowly increasing formation of these soft, skin-coloured or slightly brownish, painless papules and nodules. characteristic for neurofibromas are consistency and the bell-button phenomenon (the papules can be pressed into the skin under pressure). on the flanks on both sides large café-au-lait spots up to 8 cm in diameter. the simultaneous detection of several café-au-lait spots secured the clinical diagnosis here.
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