It is usually present at birth, and is characterized by persistent fixed, flat, blue-violet cutaneous marmorata, telangiectasia, and phiebectasia.

• 此皮肤病兆大多于出生时即可见，主要是为蓝色到深红色大理石样的网状斑纹，并常伴有皮肤溃烂或萎缩的现象。