Important nodal stations in rectal cancer

This axial schematic diagram of the mid rectum shows the three major lymphatic drainage regions that are relevant to rectal cancers.

Modified from:

Matalon SA, Mamon HJ, Fuchs CS, et al. Anorectal cancer: Critical anatomic and staging distinctions that affect use of radiation therapy. Radiographics 2015; 35:2090.
American Joint Committee on Cancer (AJCC) Cancer Staging Manual, 8th Edition, Amin MB (Ed), Chicago: Springer Science+Business Media, LLC, 2017.

Graphic 114850 Version 2.0

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