Cutis marmorata telangiectatica congenita (CMTC) is a rare, congenital, vascular disorder that may sometimes be associated with ulcerations of the involved skin. We present a case of CMTC, asymptomatic since birth, that began developing painful ulcerations during adolescence. Although laser therapy may benefit the superficial aspect of this vascular anomaly, the presence of deeper involvement in lesions with ulcerations may not respond favorably to laser therapy and the best approach needs to be further evaluated.