SIH Medical Group Rheumatology cares for various conditions such as rheumatoid arthritis, psoriatic arthritis and inflammatory join problems, systemic lupus erythematosus, scleroderma and connective tissue disease, osteoarthritis, tendonitis and regional musculoskeletal problems, polymyalgia rheumatica, vasculitis and other systemic inflammatory conditions, fibromyalgia and evaluation of abnormal immunologic testing.