Antihistone antibodies in linear scleroderma variants.

Background: Linear scleroderma occurs as two clinically distinct variants: the frontoparietal en coup de sabre type, and the torso-extremity type. Antihistone antibodies (AHAs), which traditionally are markers for drug-induced lupus, may also be linked to linear scleroderma.

Methods: Retrospective review of all patients presenting with linear scleroderma who had AHA titers measured.