Is the clinically positive axilla in breast cancer really a contraindication to sentinel lymph node biopsy?
- 31 January 2005
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Journal of the American College of Surgeons
- Vol. 200 (1), 10-14
- https://doi.org/10.1016/j.jamcollsurg.2004.09.010
Abstract
Background Clinically positive axillary nodes are widely considered a contraindication to sentinel lymph node (SLN) biopsy in breast cancer, yet no data support this mandate. In fact, data from the era of axillary lymph node dissection (ALND) suggest that clinical examination of the axilla is falsely positive in as many as 30% of cases. Here we report the results of SLN biopsy in a selected group of breast cancer patients with palpable axillary nodes classified as either moderately or highly suspicious for metastasis. Study design Among 2,027 consecutive SLN biopsy procedures performed by two experienced surgeons, clinically suspicious axillary nodes were identified in 106, and categorized as group 1 (asymmetric enlargement of the ipsilateral axillary nodes moderately suspicious for metastasis, n = 62) and group 2 (clinically positive axillary nodes highly suspicious for metastasis, n = 44). Results Clinical examination of the axilla was inaccurate in 41% of patients (43 of 106) overall, and was falsely positive in 53% of patients (33 of 62) with moderately suspicious nodes and 23% of patients (10 of 44) with highly suspicious nodes. False-positive results were less frequent with larger tumor size (p = 0.002) and higher histologic grade (p = 0.002), but were not associated with age, body mass index, or a previous surgical biopsy. Conclusions Clinical axillary examination in breast cancer is subject to false-positive results, and is by itself insufficient justification for axillary lymph node dissection. If other means of preoperative assessment such as palpation- or image-guided fine needle aspiration are negative or indeterminate, then SLN biopsy deserves wider consideration as an alternative to routine axillary lymph node dissection in the clinically node-positive setting.Keywords
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