Extensive blue patch like pigmentation; a morphologic variant of blue nevus? persistent extrasacral Mongolian blue spot? diffuse mesodermal pigmentation?
D006801:Humans; D049328:Mongolian Spot; D009506:Nevus; D018329:Nevus, Blue; D009508:Nevus, Pigmented; D010858:Pigmentation; D012878:Skin Neoplasms; D012880:Skin Pigmentation
PIGMENTATION/cutaneous