rom 1970-1992

30 cases of primary gouty arthritides were found in the out-patient de-pattment.28 of them were mis-diagnosed. Primatry diagnostic accuracy was 6. 6 percent only。Twenty one cases(70%)were mis-diagnosed as rheumatic or rheumatoid arthritis

the orther 7cases as bursitis of big toe(23. 3% )。Such a high mis-diagnosis rate was rare; Lcak of under-standing of gout and careless examiuation led to mis-diagnoses

Author considered that typical symptoms

high uricacidemia and colchicine test were key ofrealy diagnostic criterion。