Lymph nodes around the posterior gastric artery: their existence, frequency, and clinical implications

Lymph nodes around the posterior gastric artery: their existence, frequency, and clinical... Purpose The lymphatic flow along the posterior gastric artery (PGA) is considered of possible clinical importance in terms of lymphatic metastasis; however, little is known about the lymph nodes (LNs) around this artery. The purpose of this study was to establish if LNs exist around the PGA and to evaluate their clinical implications. Methods We examined the tissues surrounding the PGA from 21 cadavers to search for LNs. We also investigated the pat‑ terns of lymphatic metastases in patients who underwent surgery for gastric neoplasms at our institute to detect their presence along the PGA. Results The PGA was identified in 11 cadavers, and LNs around the PGA were detected microscopically in 2 of these. Lymphatic metastasis directly to the LNs at the splenic artery without any metastases was regarded as skip metastasis along the PGA. Skip metastasis was found in two of ten patients who underwent surgery for remnant gastric cancer. Conclusions The existence of LNs around the PGA was confirmed, and based on our findings, lymphatic metastasis through the PGA is possible in patients with remnant gastric cancer. Keywords Posterior gastric artery · Lymph node metastasis · Remnant gastric cancer Introduction branch of the left inferior phrenic artery (#2), http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Surgery Today Springer Journals

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Nature Singapore Pte Ltd.
Subject
Medicine & Public Health; Surgery; Surgical Oncology
ISSN
0941-1291
eISSN
1436-2813
D.O.I.
10.1007/s00595-018-1677-0
Publisher site
See Article on Publisher Site

Abstract

Purpose The lymphatic flow along the posterior gastric artery (PGA) is considered of possible clinical importance in terms of lymphatic metastasis; however, little is known about the lymph nodes (LNs) around this artery. The purpose of this study was to establish if LNs exist around the PGA and to evaluate their clinical implications. Methods We examined the tissues surrounding the PGA from 21 cadavers to search for LNs. We also investigated the pat‑ terns of lymphatic metastases in patients who underwent surgery for gastric neoplasms at our institute to detect their presence along the PGA. Results The PGA was identified in 11 cadavers, and LNs around the PGA were detected microscopically in 2 of these. Lymphatic metastasis directly to the LNs at the splenic artery without any metastases was regarded as skip metastasis along the PGA. Skip metastasis was found in two of ten patients who underwent surgery for remnant gastric cancer. Conclusions The existence of LNs around the PGA was confirmed, and based on our findings, lymphatic metastasis through the PGA is possible in patients with remnant gastric cancer. Keywords Posterior gastric artery · Lymph node metastasis · Remnant gastric cancer Introduction branch of the left inferior phrenic artery (#2),

Journal

Surgery TodaySpringer Journals

Published: Jun 4, 2018

References

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