Type I leprosy reaction "upgrading reaction": in a patient with Boderline lepromatous leprosy, characterized by an inflammatory flare-up of facial plaques.
Alopecia areata. 6 months of persistent focal alopecia of the right eyebrow in a 40-year-old patient with alopecia areata, Hashimoto's thyroiditis and atopic eczema.
Amiodarone hyperpigmentation: grey-blue hyperpigmentation after long-term application of the preparation due to tachyarrhythmia, partly splashlike, partly flat grey-blue discolouration.
sebaceous gland hyperplasia, senile. large, isolated, skin-coloured to yellowish, soft-elastic nodules (phymogenesis - see also rhinophyma) on the cheek of a 66-year-old man. on lateral view lobular structure with bumpy surface structure. pronounced actinic elastosis with beginning M. Favre-Racouchaud.
psoriasis vulgaris. localized psoriasis. no further foci! chronic dynamic, red, rough plaque covering the entire left orbital region. in addition, in the 60-year-old woman, discrete, red, slightly scaly plaques have existed for several years on the elbows, knees, sacral region, rima ani, scalp and ears (retroauricular accentuation).
Basal cell carcinoma, nodular, sharply defined, shiny, smooth tumor interspersed with bizarre "tumor vessels", which are particularly prominent in this nodular basal cell carcinoma and play an important role in the diagnosis.
Basal cell carcinoma sclerodermiformes: approx. 1.5 cm in diameter irritation-free, whitish plaque with conspicuous vessels running from the edge to the centre.
Verrucae planae juveniles: Polygonal, pinhead-sized, yellowish papules on the left cheek of a 10-year-old girl which have been added (inoculation) for weeks.
Trichoepitheliomas: bulging elastic skin-coloured nodules and nodules in the nasolabial fold; multiple, rough, hemispherical, 0.2-0.5 cm large, partly glassy, skin-coloured or red, symmetrically arranged nodules
Primary cutaneous anaplastic large cell (CD 30+) lymphoma. Painless, slowly progressive skin ulcer (62-year-old, otherwise healthy woman) which has been present for several months and treated as "pyoderma". Conspicuously raised wall of the ulcer and distinct induration of the reddened edges.
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