Whitish areas on the cheeks and/or arms of children is typical. Note that the lesions is hypopigmented, with in ill-defined border, as opposed to vitiligo which is completely depigmented with a sharp border.
Whitish areas on the cheeks and/or arms of children is typical. Note that the lesions is hypopigmented, with in ill-defined border, as opposed to vitiligo which is completely depigmented with a sharp border.
Pityriasis alba (PA) is a benign condition most commonly of the cheeks that affects preteens. It is at this age that the facial oil production is still relatively low and eczema may occur. The inflammation impairs the pigment production by melanocytes and distribution to keratinocytes of the skin. A hypopigmented area results.
An ill-defined, hypo (but not de) pigmented area occurs on one or both cheeks of a child 6-10 years of age. Sometimes other areas of the face or upper arms are affected.
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