he B-mode ultrasonogruphy and palpation in regional lymphnode of breast cancer from 46 cases were anal-ysed.All the cases were identified by operation and pathoiogy. The sensitivity and specificity of the diagnosis betweenthe ultrasonograpgy and palpation for axillary node metastases were 72.4% and 48.3%

were 72.4% and 48.3%

82.4% and 76.51%re-speetively.And the accuracy were 76.1%and 58.7% respectively(P<0.05).Theultrasonography of intemal mam-mary node in 3cases with extended radical mastectomy had an accuracy of 3/ 3 in diapnosing. The result shows thatthe ultrasonography is superior to the palpation in detecting the regional lymph node metastasis.