Multiple seborrhoeic keratoses in different stages of development. 2.0 cm in diameter in the centre, dark brown seborrhoeic keratosis. Characteristic is the punched surface.
Bowen's carcinoma: on years of preexisting, less symptomatic Bowen's disease (Bowen disease), increasing infiltration with verrucous keratotic deposits (invasive carcinoma development).
type I neurofibromatosis, peripheral type or classic cutaneous form. detailed view. numerous smaller and larger soft papules and nodules. nevus anemicus marked by arrows. 2 smaller capillary angiomas.
Keratosis seborhoeic: A slow-growing, broad-based, brown-black nodule that has been present for years; a lateral view shows the knot's sloppy growth pattern particularly well.
Verruca seborrhoica. 56 year old patient with differently configured and colored disseminated papules and plaques localized on the trunk. 0.2-1.5 cm tall, flat raised (as if glued on), yellow, yellow-brown or brown-black papules or plaques with a smooth, shiny surface, which is broken up by numerous black horn inclusions, giving Verruca seborrhoica a surface characteristic that looks like punched.
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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