Lichen planus exanthematicus. symmetricgeneralized distribution pattern of Lichen planus. the densification of the efflorescences in the belt region is to be interpreted as (pressure-induced) Koebner phenomenon.
Melanosis neurocutanea. general view: Huge melanocytic nevus occupying nearly the whole back with single, dark-black pigmented, partly exophytic-papillomatous parts; on the left back flat, soft, skin-coloured tumours (dewlaps) and some neurofibromas are visible.
type i neurofibromatosis, peripheral type or classic cutaneous form. numerous deep-seated soft papules and nodules. multiple smaller and larger café-au-lait spots.
Melanoma, malignant, foudroyant, diffuse, cutaneous metastasis around the older operation scar in the area of the thoracic wall; primary tumor: nodular melanoma pT3a; post-operative 3 years ago.
Acanthosis nigricans benigna: blurred brown-black spots and plaques. the plaques are characterized by a slightly sooted, leathery surface. no subjective symptoms.
Mycosis fungoides of the "pagetoid reticulosis" type. slight tendency to progression. blander clinical course over years with intermediate complete remission. typical clinical picture with the girlad-like limitation
Scabies granulomatosa; after antiscabial therapy persistent, severely itching, reddish-brown, solitary or grouped papules in an 81-year-old resident who had been treated with lindane in a scabies epidemic.
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