1. Sung H, Ferlay J, Siegel RL, et al. Global Cancer Statistics 2020:GLOBOCAN Estimates of incidence and mortality worldwide for36 cancers in 185 countries. CA Cancer J Clin. 2021;71(3):209-249.doi:10.3322/caac.21660
2. Hess KR, Varadhachary GR, Taylor SH, et al. Metastatic patterns inadenocarcinoma. Cancer. 2006;106(7):1624-1633. doi:10.1002/cncr.21778
3. Fortea-Sanchis C, Martínez-Ramos D, Escrig-Sos J. The lymph nodestatus as a prognostic factor in colon cancer: comparative populationstudy of classifications using the logarithm of the ratio between metastaticand nonmetastatic nodes (LODDS) versus the pN-TNM classificationand ganglion ratio systems. BMC Cancer. 2018;18(1):1-11. doi:10.1186/s12885-018-5048-4
4. Feng X, Li H, Lu X, et al. Regional lymph nodes distribution pattern incentral area of right-sided colon cancer: in-vivo detection and the updateon the clinical exploration. Am J Cancer Res. 2021;11(5):2095-2105.
5. NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®)Colon Cancer. (n.d.). Accessed May 1, 2023.
6. Kitano Y, Kuramoto M, Masuda T, et al. Ascending colon cancer withsynchronous external iliac and inguinal lymph node metastases butwithout regional lymph node metastasis: a case report and brief literaturereview. Surg Case Rep. 2017;3(1):32. doi:10.1186/s40792-017-0309-z
7. El-Halabi MM, Chaaban SA, Meouchy J, Page S, Salyers WJ Jr. Coloncancer metastasis to mediastinal lymph nodes without liver or lunginvolvement: A case report. Oncol Lett. 2014;8(5):2221-2224. doi:10.3892/ol.2014.2426
8. Strohm WD, Phillip J, Hagenmüller F, Classen M. Ultrasonic tomographyby means of an ultrasonic fiberendoscope. Endoscopy. 1980;12(5):241-244.doi:10.1055/s-2007-1021752
9. Vilmann P, Jacobsen GK, Henriksen FW, Hancke S. Endoscopicultrasonography with guided fine needle aspiration biopsy in pancreaticdisease. Gastrointest Endosc. 1992;38(2):172-173. doi:10.1016/s0016-5107(92)70385-x
10. Reddy Y, Willert RP. Endoscopic ultrasound: what is it and whenshould it be used? Clin Med (Lond). 2009;9(6):539-543. doi:10.7861/clinmedicine.9-6-539
11. Yousaf MN, Chaudhary FS, Ehsan A, et al. Endoscopic ultrasound (EUS)and the management of pancreatic cancer. BMJ Open Gastroenterol.2020;7(1):e000408. doi:10.1136/bmjgast-2020-000408