CHI Memorial Arthritis and Rheumatology Associates diagnose and treat arthritis and other rheumatic diseases which affect the joints, muscles, bones and sometimes other organs in the body (e.g., kidneys, lungs, blood vessels, brain). Rheumatoid arthritis, osteoporosis, musculoskeletal pain disorders, gout, fibromyalgia, certain autoimmune diseases, such as lupus, vasculitis, antiphospholipid syndrome, and scleroderma are a few of the conditions that can be effectively managed by rheumatologists.