Skin color - patchy Image

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Halo nevus	Acanthosis nigrican...	Acanthosis nigrican...
Neurofibromatosis, ...	Vitiligo, drug indu...	Vitiligo on the face
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Halo nevus

A halo nevus occurs when the body develops an immune response to the pigment cells around a nevus. The pigment disappears and the area becomes white. Often in the process, the nevus itself disappears, leaving a circular white spot (macula.

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