Linear childhood discoid lupus erythematosus along a Blaschko's line of the arm

Abstract Linear childhood discoid lupus erythematosus (DLE) is a rare variant of DLE with linear distribution that preferentially occurs on the face and scalp children. We report case Blaschko's line his left upper arm 7‐year‐old Japanese boy 4‐year history disease. He was positive for anti‐single‐stranded DNA antibodies, but still showed no systemic symptoms during 3‐year follow‐up period. reviewed previous reports found patients nonfacial/nonscalp skin lesions are significantly more likely to be autoantibodies.