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Nevus Anemicus
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Nevus anemicus is a congenital anomaly of the skin characterized by a solitary area which is paler compared to the surrounding skin. This is due to the blood vessels within the area are more sensitive to the body’s normal vasoconstricting chemicals.

This benign patch appears on the skin at birth or in early childhood. In most people these are under 10cm in size. If there is doubt about the diagnosis, rubbing the area causes the skin around the lesion to become red while the lesion itself doesn’t change.

In most people a nevus anemicus is on a covered area and so light in appearance that no treatment is needed.

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