Stage IV rectal cancer; drawing shows other parts of the body where rectal cancer may spread, including lymph nodes, lung, liver, abdominal wall, and ovary. An inset shows cancer cells spreading from the rectum, through the blood and lymph system, to another part of the body where metastatic cancer has formed.

Stage IV rectal cancer. The cancer has spread through the blood and lymph nodes to other parts of the body, such as the lung, liver, abdominal wall, or ovary.

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