Definition: A bluish-gray to gray-brown benign, melanocytic nevus found usually in the LUMBOSACRAL REGION of dark-skinned people, especially those of East Asian ancestry. It is usually congenital or appears shortly after birth, and disappears in childhood.
coordinate IM with SKIN NEOPLASMS (IM) + site (IM or NIM) if relevant
See AlsoNevus, Blue
Other names Spot, Mongolian; Blue Spot, Mongolian; Mongolian Blue Spot
