DefinitionThis section has been translated automatically.
Old, burnt-out melanocytic nevus in which the connective tissue stroma has largely displaced the melanocytes.
EtiopathogenesisThis section has been translated automatically.
Melanocytic nevi that have completed their active junctional proliferation phase, in which the dermal melanocytes (so-called nevus cells) are gradually replaced by a neurogenic connective tissue During this involution, the nevus cell nests can express neuroid structures so that "neurofibrom-like" formations can develop. The ability to form pigments is increasingly lost.
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ManifestationThis section has been translated automatically.
> 40 years; no gender dominance
LocalizationThis section has been translated automatically.
Especially on the face, also on the capillitium. Furthermore, all areas of the skin can be affected. The palms of the hands and soles of the feet are rarely affected, nor are the mucous membranes.
Clinical featuresThis section has been translated automatically.
0.3-1.0 cm in size, rarely larger, hemispherical, skin-coloured or greyish-yellowish (in long populations the original brown tone in the dermal melanocytic naevi is completely absent), very soft or fleshy, asymptomatic, broad-based, rarely pedunculated growths, which are frequently impaled by a bristly hair. The tumours are also colloquially interpreted as "warts".
Differential diagnosisThis section has been translated automatically.
Outgoing links (4)Basal cell carcinoma nodular; Dermatofibroma; Nasal papilla fibrosus; Neurofibroma;
Please ask your physician for a reliable diagnosis. This website is only meant as a reference.