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Diagram of the colon and lymphatic drainage. Lymph node key: right colic (dark green); superior mesenteric (aqua); middle colic (light green); left colic (dark red); sigmoid (purple); inferior mesenteric (orange). Paracolic lymph nodes (red and purple), intermediate lymph nodes (yellow, light green, dark green, orange, dark red), and preterminal lymph nodes (light blue). Epicolic nodes are not shown due to minute dimensions
