Cutis marmorata telangiectatica congenita (CMTC) is a rare cutaneous condition in newborns. The lesions form a red or purplish network, sometimes with dilated veins and atrophic areas. Multiple malformations may be associated with it, in particular in infants with macrocephaly. These cutaneous lesions may improve, disappear or remain stable. The appearance is characteristic and diagnosis is based on the clinical picture.