Mongolian SpotsMongolian spots are flat, slate-gray to bluish-black, poorly circumscribed macules. They are located most commonly over the lumbosacral area and buttocks (Fig. 8-87), although they can appear anywhere on the body. The spots range in size from 1 to 10 cm and may be single or multiple (see Fig. 6-65). Ninety percent of African American infants, up to 80% of Asian infants and those from other darkly pigmented ethnic groups, and about 10% of Caucasian newborns have these macules, which contain accumulations of melanocytes deep within the dermis. No risk of malignancy is known, and Mongolian spots usually fade without therapy by age 7.
Mongolian SpotsMongolian spots are flat, slate-gray to bluish-black, poorly circumscribed macules. They are located most commonly over the lumbosacral area and buttocks , although they can appear anywhere on the body. The spots range in size from 1 to 10 cm and may be single or multiple . Ninety percent of African American infants, up to 80% of Asian infants and those from other darkly pigmented ethnic groups, and about 10% of Caucasian newborns have these macules, which contain accumulations of melanocytes deep within the dermis. No risk of malignancy is known, and Mongolian spots usually fade without therapy by age 7.
