Abstract: The lines of Blaschko is a special line arrangement distributed on the human skin and mucous membranes, it is considered to be a manifestation of skin chimeras. It had been reported that a variety of skin diseases along Blaschko's lines in previous reports, which were classified as congenital and acquired. Here we report four types of inflammatory diseases along Blaschko's lines, including linear cutaneous lupus erythematosus, linear lichen sclerosis atrophicus, lichen striatus, and lichen planus liuearis.

Key words: Blaschko's lines, linear cutaneous lupus erythematosus, lichen striatus