chronic active hepatitis, systemic lupus erythematosus, pemphigus,
bullous pemphigoid, autoimmune haemolytic anaemia, idiopathic thrombopenic purpura, alopecia areata, Addison's disease.
Type 3 MAS: acquired primary hypogonadism, hypophysitis, rheumatoid arthritis, primary biliary cirrhosis, relapsing polychondritis, multiple sclerosis, chronic active hepatitis, ulcerative colitis, scleroderma.