“…A variety of circulating autoantibodies and immunologic phenomena are reported in patients with AITL, including positive Coomb's test, cold agglutinins, cryoglobulins, circulating immune complexes, ANAs, rheumatoid factors, and anti–smooth muscle antibodies (23,25,26). In addition to serologic presence of autoantibodies, various clinical autoimmune phenomena have been reported in association with AITL, including autoimmune hemolytic anemia, vasculitis (27), polyarthritis mimicking rheumatoid arthritis (28,29), and autoimmune thyroid disease (26).…”