Cutis marmorata telangiectatica congenita or neonatal lupus?

Cutis marmorata telangiectatica congenita (CMTC) is a cutaneous vascular abnormality characterized by a persistent cutis marmorata pattern, spider nevuslike telangiectasia, and superficial ulceration. An infant girl was noted at birth to have characteristic features of CMTC as well as anti-Ro/SSA antibodies and a positive autonuclear antibody (ANA) test. Serologic studies carried out on her mother were positive for Ro/SSA antibodies as well as ANA (titer 1:2560). Therefore the diagnosis of neonatal lupus was made. We propose that livedo patterns mimicking CMTC might sometimes represent the residual phase of neonatal lupus active during intrauterine life.