Clinical outcomes of enrolled 402 patients. a On 2P-BS, 51 patients showed tenosynovitis. Among them, 41 patients were in early arthritis and 7 in established arthritis. b Physical examination suggested tenosynovitis on 88 patients. Fifty of them were in the RA group with 8 early arthritis and no established arthritis. 2P-BS two-phase bone scintigraphy, RA rheumatoid arthritis, SLE systemic lupus erythematosus, P/Ex physical examination