A patient is especially worried about an area of skin on her feet that has turned white. The health care provider has told her that her condition is vitiligo. The nurse explains to her that vitiligo is:
a. Caused by an excess of melanin pigment
b. Caused by an excess of apocrine glands in her feet
c. Caused by the complete absence of melanin pigment
d. Related to impetigo and can be treated with an ointment
ANS: C
Vitiligo is the complete absence of melanin pigment in patchy areas of white or light skin on the face, neck, hands, feet, body folds, and around orificesâ€"otherwise, the depigmented skin is normal.
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