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Updated: Jun 2, 2026
Sentinel Lymph Node Mapping and Biopsy for Endometrial Cancer at Early Stage with Laparoscopy
Published on: August 19, 2021
Sentinel node biopsy alone for node-positive breast cancer: 12-year experience at a single institution
Lisa Spiguel1, Katharine Yao, David J Winchester
1Department of Surgery, University of Chicago, Chicago, IL 60201, USA.
Background:
Complete node dissection for a tumor-positive sentinel node (SN) is becoming more controversial. We report our institution's 12-year experience with sentinel node biopsy (SNB) alone for a tumor-positive SN.
Study Design:
This was a retrospective review from 1998 to 2009. Of 3,806 patients who underwent SNB, 2,139 underwent SNB alone, of which 1,997 were tumor-negative and 123 were tumor-positive. SNs were staged node-positive (N1mic or N1) according to American Joint Committee on Cancer criteria.
Results:
One hundred and twenty-three node-positive patients underwent SNB alone with no completion axillary dissection for invasive breast cancer. Mean age was 57 years (range 32 to 92 years) and stage distribution was as follows: stage IIA: 76 (62%) patients; stage IIB: 40 (33%) patients; and stage III: 4 patients (3%). Mean size of the tumors was 1.9 cm (range 0.1 to 9 cm). Eighty-nine (72%) underwent lumpectomy and 34 (28%) underwent mastectomy. Ninety-three percent of patients underwent some form of adjuvant therapy. Forty-two patients (34%) did not undergo radiation and there were no axillary recurrences in this group. At median follow-up of 95 months, there has been 1 axillary recurrence (0.8%) and 13 deaths, 4 of which were attributed to metastatic breast cancer and the rest to non-breast-related causes.
Conclusions:
Axillary recurrence is rare after SN biopsy alone. This might be related to favorable tumor and patient characteristics and frequent use of adjuvant therapy.
