Kaposi's sarcoma (endemic). detailed view of the endemic Kaposi's sarcoma with presentation of the flat-elevated hyperpigmented plaque. new foci seem to form in the marginal area. occurrence in the context of immunosuppression in known B-cell lymphoma.
Keratosis palmoplantaris diffusa circumscripta: Thick, waxy, yellowish, plate-like corneal layer, which is sharply separated from the field skin by a red stripe; in the lower right part of the picture the waxy corneal plate had detached a few days ago.
Acanthosis nigricans benigna: Mostly symmetrical blackish-brown hyperpigmentations with velvety, partly also verrucous plaques. Blurred demarcation to the surroundings. No detectable underlying disease.
Lentigo of the mucosa: sharply defined, brownish hyperpigmentation in the sense of gingivamelanosis along the lower row of teeth in a 36-year-old female patient.
Xanthomas, eruptive:disseminated, 0.1-0.3 cm large, yellow-brown, flat raised, superficially smooth and shiny, firm papules in dense seeding in a 54-year-old patient with known hyperlipoproteinemia type IV.
Acropustulosis, infantile. disseminated, partly individually, partly grouped standing papules, vesicles and pustules in the area of the back of the hand and the finger extensor sides in infants.
Eczema atopic: Skin lesions in a 22-year-old woman with generalized atopic eczema. In the area of the joint bends accentuated, blurred, extensive, grey-brown, itchy plaques. Skin field coarsened (lichenification).
lentigo of the mucosa. incident light microscopy: brown to greyish-brown pigment streaks and pigment clusters as well as bluish-grey melanophagus agglomerates in the lower lip red. melanoma features are not present. noticeable is the blurred border with the spatter-like pigmentation. this pigmentation of a previously unpigmented mucosa, typical for the mucosa, results in the jagged clinical border.
Acanthosis nigricans (benigna): generalized clinical picture with pigmented, blurred, symptomless plaques in the axillae, genital area and inguinal regions.
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