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. 2023 May 5;48(9):2792–2806. doi: 10.1007/s00261-023-03893-2

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Fig. 5 — Pelvic nodal drainage pathway in relation to the dentate line. A For a tumor above the dentate line, the locoregional nodes (colored in gold) include the inferior mesenteric, superior rectal, internal iliac, obturator, and mesorectal nodes. Non-locoregional nodes (colored in purple) include the common iliac, external iliac, and inguinal nodes. B For a tumor below the dentate line, the locoregional nodes (colored in gold) also include the inguinal lymph nodes. Non-locoregional nodes (colored in purple) include the common iliac and external iliac nodes