Abstract: STUDY ON DIAGNOSIS OF HD Chen Shuran; Zhang Guangli; Yang Yumei(Nuclear Medicine Department of Taiyuan Railway Central Hospital,030013）ABSTRACT This study suggests a three-step diagnostic method for diagnosing HD ： the first step is to makeTgA ， TmA examination; the second step is to make differential diagnosis for the cases of negativeTgA ， TmA through FNAB examination； the third step is to makd TgA ， TmA and FNAB examinationfor dynamic observation of controversial cases left over in the former two steps to achieve accurate di-agnosis． Differential diagnosis has been made with the method in 8 7 cases of HD（clinical diagnosis on-ly）．The result shows that 7 cases have been diagnosed as thyropathy through comprehensive evalua-tion； definite diagnosis of HD has been made in 6 2 cases through TgA ， TmA and in 7 7 cases throughFNAB； 3 cases of negative TgA and TmA failed to accept FNAB examination ， and were later diag-nosed as HD through operation pathology or clinical treatment.Key words TgA TmA FNAB combined test HD diagnoseShanxi MedieaI College The First Affiliated Hospital， Taiyuan 030001