A Halonävus Nevocytic is that of a white, non-pigmented ring ( halo) surrounded. (Synonym: nevus Sutton) This is a particular subtype of benign and limited malformations the skin (nevi), known colloquially as "moles".
epidemiology does this kind of Pigmentnävus especially in childhood to early adulthood and can sometimes be a sign of a vitiligo (white spot disease ") are (about 20% of vitiligo patients have halo nevi).
clinic
forms first is a pre-existing Nevocytic a reddish Court, which will fades away over time and white. Later you can then also the central nevus regress and lose its pigment. Years or months after the entire lesion can again take the normal skin color.
It is believed that autoimmune processes are involved in the destruction of melanin and melanocytes.
forecast
usually disappear halo nevi after a certain time by itself and be completely safe.
Occasionally, however, also form a malignant melanoma a depigmented ring, making it can be confusion between a Halonävus and this dangerous type of skin cancer.
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