Psoriasis of the hands (Palmae, fingers): Detailed picture with periungual infestation; here, a clear nail dystrophy is covered with an artificial nail.
Xanthelasma palpebrarum: 2 smaller symptomless yellow papules; in addition, a dermal melanocytic nevus (skin-colored soft papules) is found in the corner of the eye and nose which has remained unchanged for many years.
Xanthelasma: excessive findings. broad-based, symptom-free, yellow, soft plaques and nodules on the upper and lower eyelids. no disturbances of the fat metabolism.
Herpes simplex virus infection. two adjacent foci on the lower lip and chin respectively. classic clinical finding with acute, itchy, herpetiform grouped, sometimes confluent raised areas (blisters) on a slightly reddened background.
Oral hairy leukoplakia: Flat, white-yellowish, verrucous coating of the tongue with deep erosive, longitudinal fissures in the area of the central part of the tongue. Previously known HIV infection with Kaposi sarcoma.
melanoma malignes amelanotic: since earliest childhood a pigment mark is known at this site. continuous growth for several years. ulceration of the node for half a year. no significant symptoms. the diagnosis cannot be made on the basis of the clinical picture.
Molluscum contagiosa: colourful picture with multiple, 0.2-0.3 cm large, yellowish, firm, shiny, sometimes itchy nodules, sometimes small scars and crusty papules (spontaneously healed molluscs).
Lichen simplex chronicus: Solitary, chronically stationary, red, rough plaque, which is formed by the "confluence" of multiple red papules. In the marginal area, single papules are still visible.
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