Systemic sclerosis-polymyositis overlap syndrome associated with autoimmune hepatitis and cerebral vasculitis.

Autoimmune hepatitis (AIH) is a chronic disorder characterized by persistent hepatocellular inflammation and necrosis. AIH overlap syndromes with other autoimmune diseases have been reported, including connective tissue diseases (CTD). Reports of AIH in systemic sclerosis (SSc), however, are scarce and have been particularly described in the limited SSc subtype. We report a case of systemic sclerosis-polymyositis overlap syndrome that developed AIH and subsequently, cerebral vasculitis. To our knowledge, this is the first report of such a complex mosaic of autoimmunity. We also review the literature regarding scleroderma-related AIH.