A case of linear type of lichen sclerosus et atrophicus?

We report a case of the linear type of lichen sclerosus et atrophicus (LSA). The patient had linear atrophic lesions from the left upper back to the left hand. Histological findings obtained from the upper back were those of typical LSA. Histology of the forearm showed mild changes suggestive of LSA. There were no histological features suggesting any association with localized scleroderma in either specimen. The relation between LSA and localized scleroderma is unclear at present. This case suggests that there is a linear form in LSA as already recognized in localized scleroderma.