A case of lichen striatus following Blaschko lines.

We present a case of lichen striatus (LS) in a 36-year-old woman with skin lesions on the right side of the chest distributed along Blaschko lines that showed a swirling s-shaped pattern. The differential diagnosis of LS includes a variety of nevoid and acquired conditions following Blaschko lines, particularly acquired relapsing self-healing Blaschko dermatitis. The extent to which these 2 conditions overlap remains contentious.