What is hemicolectomy?

Colon Resection: The literal definition would be "removal of half of the colon", either left or right. This typically refers to cancer operations in which the extent of resection corresponds with the blood supply & lymph node distribution of the colon. In actuality, we usually perform "segmental" resections, typically removing 1/3 to 1/4 of the colon.

Surgery: Open or laparoscopic surgery to remove only a portion of the colon (large intestine). The surgery can be for needed for benign disease or for cancers.