methylene blue for harvesting lymph node

The methylene blue technique is recommended for harvesting LNs during gastric cancer surgery on the basis of both the quality and efficacy.

Open References

 A methylene blue-assisted technique for harvesting lymph nodes after radical surgery for gastric cancer: a prospective, randomized, controlled study. Aoyama T, Fujikawa H, Cho H, Ogata T, Shirai J, Hayashi T, Rino Y, Masuda M, Oba MS, Morita S, Yoshikawa T. Am J Surg Pathol. 2015 Feb;39(2):266-73. doi : 10.1097/PAS.0000000000000336 PMID: 25356528 (free)