Unilateral, Multiple Lichen Striatus in a Pregnant Woman

Observation: Lichen striatus is a self-limitig inflammatory dermatosis characterized with erythematous papules that follows the lines of Blaschko. It usually occurs in childreen between the ages of 5-15 years, and rarely in adults. The lesions are mostly unilateral and asymptomatic, and localized on extremities. Trunk, neck and facial involvement are less frequent. Histopathologically; hyperkeratosis, acanthosis, focal parakeratosis, dyskeratotic keratinocytes in the epidermis and band-like lymphocytic infiltration in the dermis are observed. We present a case of multiple lichen striatus on the right thigh and arm occuring at 30 weeks of pregnancy. In our knowledge, this is the second case of liken striatus presented in a pregnant woman.