Mastocytosis. cutaneous, diffuse mastocytosis with two-dimensional "peau d`orange" and partly water clear, partly haemorrhagic, firm (subcutaneous) blisters. single scratch marks.
Lymphoma, cutaneous NK/T-cell lymphoma Detail magnification: Extranasal NK/T-cell lymphoma: Disseminated, red, livid and brown-red, 0.5-3.5 cm large papules and nodes on the back.
naevus anaemicus: congenital, irregularly dissected white, smooth stains at the edges. no reddening after rubbing the stain. on glass spatula pressure the boundaries to the surrounding area disappear.
Mastocytomas cutaneous: reddish-brown plaques that appear in the first months of life and cause symptoms such as swelling and central blistering only after rubbing. These symptoms also occur after warm bathing.
Lichen sclerosus extragenitaler (and genital): small and large, partly sharply and partly blurredly bordered spots and plaques with parchment-like surface
Nummular Dermatitis: Multiple, reddened, confluent, roundish or bizarrely configured plaques with weeping yellowish crusts on the back of a 76-year-old female patient.
basal cell carcinoma (overview): basal cell carcinoma pigmented. superficial (superficial), multi-segmental, symptomless, partly smooth, partly scaly plaque. arrows mark the pigmented nodular structure in the marginal area. encircles the prominent marginal structure in the "depigmented" part of the tumor. differential diagnosis excludes a malignant melanoma of the SSM type.
Eczema, photoallergic. seti 6 weeks of unpleasantly itchy and exciting skin lesions. these occurred in the previously always skin-healthy 57-year-old patient (office work) for the first time 6 weeks after a new intake of a hydrochlorothioacid-containing medication, after a Sunday walk. findings: blurredly bordered (scattering phenomena), heliotropic eczema pattern with flat, enormously itchy and exciting, scaly red plaques and papules running out at the edges.
Insect bites: urticarial, highly itchy inflammatory reaction of the skin immediately after the bite; pronounced edema with distinct depression of the follicles.
V:ari cells:generalized, but only moderately pronounced exanthema with erythema, vesicles, papules, papulopustules on the stem of a 24-year-old female patient.
Nodules black: Daignsoe: Melanoma "type nodular transformed superficial spreading melanoma": Black plaqueknown for several years with increasing, recently rapid thickness growth. repeated wetting and bleeding of the surface. 53-year-old patient.
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