Of 61 axillary LNs analysed by HE staining and CK19 RT?PCR,7 LNs were found to have metastases by histological staining and CK19 RT?PCR.

• 61个淋巴结同时进行逆转录－聚合酶链反应（RT－PCR）及组织学检查，7个淋巴结病理证实有转移，其CK19mRNA亦都表达阳性；