You may need all or only part of your colon ( Large Intestine) removed. Operations to remove different sections of the colon have different names.
Total colectomy
A total colectomy removes your entire large intestine. It begins at the end of your small intestine and ends at your rectum, the tail end of the large intestine that leads into the anal canal.
Partial/subtotal colectomy
A subtotal or partial colectomy removes a portion of your large intestine. Your operation may go by a more specific name that references the section of your colon removed. For example:
- Sigmoid colectomy. A sigmoid colectomy, or sigmoidectomy, removes the last section of your colon, known as the sigmoid colon. The sigmoid is the part that connects to your rectum.
- Hemicolectomy. A hemicolectomy removes one side of your colon. A left-side hemicolectomy removes your descending colon, the section that travels downward on the left. A right-side hemicolectomy removes your ascending colon, the section that travels upward on the right side. This is roughly the first half of your colon.
- Proctocolectomy. A proctocolectomy removes part or all of the colon and the rectum. “Procto” means rectum. (A total proctocolectomy removes the entire colon and rectum.)