'Doctor, why is my baby's arm black?' The neonatal presentation of a Giant Congenital Melanocytic Naevus

摘要

A baby boy presented at birth with a large uniform, dark blue hypertrophic skin lesion on the right arm. The lesion was circumferential extending from the ventral aspect of the wrist to the border of the shoulder margin with two further denser foci on the dorsalaspect of the mid-right arm, measuring 9x6 mm and 6x3 mmrespectively (figures 1 and 2). Hypertrichosis was noted on the lesion without satellites or pigmentation elsewhere. Neurovascular examination of the upper limbs was bilaterally normal.