type i neurofibromatosis, peripheral type or classic cutaneous form. numerous smaller and larger soft, predominantly pigmented, practical nodules and nodules. in the larger nodules the so-called "bell-button phenomenon" can be detected. the palpating finger penetrates the deep dermis as if through a fascial gap. few café-au-lait spots. papules and nodules. only isolated rather discreet café-au-lait spots.
blue nevus. blue-black, coarse, sharply defined, calotte-shaped node with a smooth, like polished, shiny surface. in addition, hairs run through the node. follicle ostia funnel-like indented. especially the detection of hairs in the node area speaks against malignancy (DD: nodular malignant melanoma), because the tumor growth does not infiltrate and destroy the hair follicles.
Melanoma, malignant, superficially spreading. 2.0 x 1.4 cm large, brown-black to black plaque with nodular parts and irregular borders on clearly sun-tanned skin. Within the plaque two smaller, reddish-brown areas are also impressive. The lesion has occasionally bled in the history (trace of blood when drying).
Erythroplasia. erythroplasia existing for years with transition to an invasive penis carcinoma. clearly recognizable "cloverleaf-like" progression zones of the carcinoma.
basal cell carcinoma nodular: centrally ulcerated basal cell carcinoma. the diagnosis is recognizable by the marginal, glassy nodular structures. the centre of the nodule is overlaid by an adherent haemorrhagic crust and thus cannot be assessed diagnostically.
Mycosis fungoides tumor stage: Mycosis fungoides has been known for many years, and for several months there has been a continuous appearance of plaques and nodules on the face, trunk and extremities.
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