Mongolian spots, a common congenital anomaly of the newborn. Topic review.

Dermal melanocytosis (DM), or Mongolian spot (MS), is the most common pigmented lesion in newborns, with a high prevalence in the Asian and black populations. These lesions apear when the melanocytes stop in their migration from the neural crest to the epidermis, giving rise to hyperpigmented lesion...