Table 2.

Outcomes of histologic examination and real-time RT-PCR assay

GroupABC
No. patients61222
No. dissected lymph nodes127226407
Histologic examination
    No. positive patients600
    No. positive lymph nodes2900
Real-time RT-PCR assay for CK19
    No. positive patients550
    No. positive lymph nodes34130
Real-time RT-PCR assay for UP II
    No. positive patients6110
    No. positive lymph nodes40580
Micrometastasis
    No. positive patients6120
    No. positive lymph nodes44600