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

Kentaro Ishii, Masaharu Ishida, Norihiko Sugisawa, Megumi Murakami, Tomoyuki Ono, Tomoyoshi Tachibana, Hirofumi Imoto, Takeshi Aoki, Katsuyoshi Kudoh, Shinobu Ohnuma, Naoaki Sakata, Hiroaki Musha, Takanori Morikawa, Fuyuhiko Motoi, Takashi Kamei, Takeshi Naito, Michiaki Unno

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

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 patterns 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.

Original languageEnglish
Pages (from-to)916-920
Number of pages5
JournalSurgery today
Volume48
Issue number10
DOIs
Publication statusPublished - 2018 Oct 1

Keywords

  • Lymph node metastasis
  • Posterior gastric artery
  • Remnant gastric cancer

ASJC Scopus subject areas

  • Surgery

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