Necrobiosis lipoidica: Discrete finding with slightly hardened plaque and atrophic surface (parchment-like puckering of the skin surface in the centre).
Dermatitis chronic actinic. detail enlargement: Disseminated, scratched papules and nodules as well as blurred, large-area, red, sharply itching fine-lamellar scaling spots and plaques in the face of a 51-year-old female patient with atopic eczema existing since birth.
Tinea corporis with marginal, centrally healed, scaly, less symptomatic plaques with a characteristic coarse lamellar scaling on the edges; no therapy has been performed so far.
Wegener's granulomatosis, localized stage: Laved localized early form, initial clinically unexplained flat ulcerations with crusty deposits at the tip of the nose.
Common melanocytic nevus. type: Halo-nevus, almost complete regression of the melanocytic nevi, which are indicated as light brown spots in the middle of the pigment-less areas.
Pyoderma gangraenosum. multiple, chronically progressive, painful, large-area, blue-reddish nodules, partly with polycyclic ulcerations. characteristic is the necrotic ulcer with a painful marginal zone with walllike, undermined margins and dark red, livid erythematous border.
Lichen planus erosivus mucosae. extensive, painful erosive mucositis existing for more than one year. overall progressive course. extensive painful erythema and erosions as well as extensive whitish plaques are visible.
Lichen planus mucosae. the histological changes are largely identical with those of the LP of the skin. dense lichenoid infiltrate (epitheliotropy usually not as pronounced as in lichen planus of the skin) mainly consisting of lymphocytes; compact orthohyperkeratosis with low parakeratosis.
Psoriasis palmaris et plantaris (plaque-type): Patient with palmar plaque psoriasis, infestation of the backs of the hands and fioniasis with striped keratotic plaques.
Scabies granulomatosa: In a 55-year-old patient, severe itching (especially at night), disseminated, 0.2-0.4 cm large, centrally eroded, red, rough papules with central scaling, especially on the penis and scrotum, gluteal and in the interdigital spaces.
Drug reaction, fixed. 3-day-old, roundish, sharply defined, reddish-brown plaque on the lower leg of a 20-year-old female patient with a diameter of about 4.0 cm.
Basal cell carcinoma, nodular. solitary, 0.8 x 10.8 cm in size, broad-based, firm, painless papule, with a shiny, smooth parchment-like surface covered by ectatic, bizarre vessels. Note: There is no follicular structure on the surface of the papules.
Balanoposthitis plasmacellularis: for several months, variable, multicentric, blurred, shiny redness and erosions on the glans penis and the preputial leaf; the changes on the preputial leaf are to be interpreted as "impression lesions".
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