Low-volume lymph node metastasis discovered during sentinel lymph node mapping for endometrial carcinoma Journal Article


Authors: St. Clair, C. M.; Eriksson, A. G. Z.; Ducie, J. A.; Jewell, E. L.; Alektiar, K. M.; Hensley, M. L.; Soslow, R. A.; Abu-Rustum, N. R.; Leitao, M. M.
Article Title: Low-volume lymph node metastasis discovered during sentinel lymph node mapping for endometrial carcinoma
Abstract: The aim of this study was to characterize treatment patterns and oncologic outcomes in patients with low-volume lymph node metastasis (isolated tumor cells [ITCs] and micrometastasis [MM]) discovered during sentinel lymph node (SLN) mapping for endometrial carcinoma. We identified endometrial cancer cases treated surgically from September 2005 to April 2013 in which SLN mapping was performed. MM was defined as tumor within a lymph node measuring > 0.2 mm but < 2.0 mm, and ITCs were those measuring a parts per thousand currency sign0.2 mm. Overall, 844 patients, with a median age of 61 years (range 30-90), met the inclusion criteria. Histology was as follows: endometrioid, 724 (85.8 %) patients; serous, 104 (12.3 %) patients; and clear cell, 16 (1.9 %) patients. The median number of lymph nodes resected was six (range 0-60), and the median number of SLNs was two (range 0-15). Overall, 753 (89.2 %) patients were node-negative, 23 (2.7 %) had ITCs only, 21 (2.5 %) had MM only, and 47 (5.6 %) had macrometastasis. Adjuvant chemotherapy was administered to 106 (14 %) of 753 node-negative patients, 19 (83 %) of 23 patients with ITCs, 17 (81 %) of 21 patients with MM, and 42 (89 %) of 47 with macrometastasis. Median follow-up was 26 months (range 0-108). Three-year recurrence-free survival was as follows: node-negative patients, 90 % (+/- 1.5); ITCs only, 86 % (+/- 9.4); MM only, 86 % (+/- 9.7); and macrometastasis, 71 % (+/- 7.2) [p < 0.001]. Patients with ITCs and MM frequently received adjuvant chemotherapy and had improved oncologic outcomes in comparison to those with macrometastasis to the lymph nodes. Further prospective study is needed to determine optimal post-resection management in patients with ITCs or MM alone.
Keywords: lymphadenectomy; accuracy; management; trial; gynecologic-oncology-group; frozen-section; cancer statistics; indocyanine green
Journal Title: Annals of Surgical Oncology
Volume: 23
Issue: 5
ISSN: 1068-9265
Publisher: Springer  
Date Published: 2016-05-01
Start Page: 1653
End Page: 1659
Language: English
ACCESSION: WOS:000373311600038
DOI: 10.1245/s10434-015-5040-z
PROVIDER: wos
PMCID: PMC4835811
PUBMED: 26714954
Notes: Article -- Source: Wos
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MSK Authors
  1. Elizabeth Jewell
    131 Jewell
  2. Kaled M Alektiar
    333 Alektiar
  3. Mario Leitao
    575 Leitao
  4. Martee L Hensley
    289 Hensley
  5. Robert Soslow
    793 Soslow
  6. Jennifer A Ducie
    18 Ducie