Intraoperative assessment of axillary lymph node metastases in operable breast cancer |
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Authors: | Masakuni Noguchi Masahide Minami Mitsuharu Earashi Takao Taniya Itsuo Miyazaki Yuji Mizukami Akitaka Nonomura |
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Affiliation: | (1) The Operation Center, Kanazawa University Hospital, School of Medicine, Kanazawa University, Takara-machi, 13-1, 920 Kanazawa, Japan;(2) The Department of Surgery (II), Kanazawa University Hospital, School of Medicine, Kanazawa University, Kanazawa, Japan;(3) the Pathology Section, Kanazawa University Hospital, School of Medicine, Kanazawa University, Kanazawa, Japan |
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Abstract: | The diagnostic value of intraoperative histologic examination of frozen sections of axillary lymph nodes was investigated in 243 patients with operable breast cancer. One to six hard or enlarged axillary nodes were sampled from the axillary pad which was derived from a partial axillary dissection (including level 1 and 2 nodes). Half of these nodes were histologically examined using frozen sections during surgery. After a total axillary dissection, both the axillary nodes in the partial axillary dissection and the nodes dissected at level 3 were histologically examined on permanent section. A mean of four nodes were sampled (range: 1 to 6). Axillary dissection yielded a mean of 22 nodes (range: 6 to 60). Axillary sampling detected the presence of metastases in 65 of 84 (77%) patients with positive axillary lymph nodes. In the patients in whom the axillary involvement was not identified by axillary sampling, however, the extent of axillary involvement was limited to levels 1 and 2. Therefore, a partial axillary dissection may be justified for patients in whom axillary involvement is not found on frozen section of nodes from axillary sampling, whereas a total axillary dissection should be performed for patients in whom axillary involvement is found by these procedures. |
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Keywords: | breast cancer frozen section lymph node metastases |
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