Vitiligo: First appearance 4 years ago of differently sized, differently configured, sharply defined, progressive, differently intensely depigmented patches on the trunk and extremities of a 31-year-old patient with skin type IV.
Pityriasis versicolor alba: irregularly distributed, symptomless, bright spots, which in places have merged to form larger areas, appearing after repeated exposure to sunlight.
Vitiligo, general view: Multiple, since adolescence occurring, size-progressive, flat, partly bizarrely limited, bright spots in the chest area of a 28-year-old woman. In the area of the sternum small islands of repigmented skin are visible within the bright spots.
Vitiligo: (Detail enlargement): Multiple, since adolescence occurring, size-progressive, flat, partly bizarrely limited, bright spots on mamma and in the sternum area of a 28-year-old woman. The left areola mammae (areola) is largely depigmented.
naevus anaemicus: congenital, irregularly dissected white, smooth stains at the edges. no reddening after rubbing the stain. on glass spatula pressure the boundaries to the surrounding area disappear.
Vitiligo (differential diagnosis): Halo-like depigmentation of the skin in metastasized melanoma; Balau-translucent the deep cutaneous melanoma metastases.
naevus anaemicus: congenital, marginal irregularly dissected, white, smooth spots. no redness after rubbing the spot. on glass spatula pressure the borders to the surrounding area disappear. brown colored, intralesional melanocytic naevi (speaks against vitiligo!)
Nevus, melanocytic, halo-nevus. multiple, chronically stationary, disseminated halo-nevi on the back of a 47-year-old man. the original melanocytic nevi but only shadowy recognizable.
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