PMC8164964_01
(A) Clinical manifestation of a giant congenital melanocytic nevus (GCMN) covering the entire abdomen and reaching the thigh and chest of a 1-day-old newborn. (B) The GCMN completed covered the backward aspect of the trunk to involve the entire back and buttocks. (C) The giant pigmented lesion was dark brown to black and had a rough surface, with irregular borders and pigmentation in the peripheral areas, but without elevation from the surrounding tissue since no nodular areas were detected on palpation.
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A giant melanocytic nevus was observed at the birth that covered his entire abdomen, reaching the thigh and chest, and laterally toward the backward aspect of his trunk to involve the entire back and buttocks (Figure 1A and B). The giant pigmented lesion was dark brown to black and had a rough surface, with irregular borders and pigmentation in the peripheral areas, but without elevation from the surrounding tissue since no nodular areas were detected on palpation (Figure 1C).