The Benefits of Radiologists in Early Disease Detection
November 3, 2026
Colon cancer starts when abnormal cells grow in the large intestine lining and form a tumor. A colon surgeon evaluates where the tumor sits, how deeply it affects the bowel wall, and whether it has spread to nearby lymph nodes or distant organs. Colon and rectal surgeons work with other specialists to determine a personalized care plan, and depending on the situation, surgery may be recommended. Surgery is discussed when a tumor blocks the bowel, threatens nearby structures, or is deemed appropriate for removal as part of a broader treatment plan. Here’s more information on the surgeries and procedures colon surgeons use to treat colon cancer:
Endoscopic Mucosal Resection
Endoscopic mucosal resection (EMR) is a technique used for certain early lesions confined to the colon’s inner lining. During this procedure, a flexible scope passes through the rectum into the colon, and instruments at the scope’s tip lift and remove abnormal tissue from the surface layer. This resection approach aims to remove slightly raised growths without an external incision, which limits disruption to surrounding structures. Because EMR works through natural openings, it involves a shorter recovery time than open surgery, though the exact experience varies from person to person.
A colon surgeon evaluates the size, shape, and suspected depth of a polyp or early cancer before recommending this technique. Some lesions are removed in a single piece, while larger ones may be taken out in sections. Not every colon lesion can be treated with EMR. EMR fits into a spectrum of options that ranges from minimally invasive endoscopy to more extensive operations. Pathology review of the removed tissue helps clarify how advanced the disease is and whether additional surgery, chemotherapy, or radiation therapy is necessary.
Targeted Drug Treatments
Drug and radiation-based treatments often work alongside surgery to treat colon cancer. Chemotherapy uses medications that circulate through the bloodstream and interact with rapidly dividing cells, including cancer cells. These drugs are given in cycles, which allows the body time to recover between treatments. In some treatment plans, chemotherapy is introduced before surgery to shrink a tumor, while in others it follows surgery to address microscopic disease that remains. The specific regimen and timing depend on an individual’s:
- Cancer Stage
- Overall Health
- Personal Goals
Radiation therapy uses focused energy beams to damage cancer cells’ DNA in the targeted field, affecting their ability to grow and divide. For colon cancer treatment, radiation is discussed when local control is a priority or when surgery alone cannot address all of the disease. Sometimes chemotherapy and radiation are given together to enhance the effect on tumor cells. To align these treatments with the overall care plan, surgeons work with oncology and radiation specialists. This lets care teams decide whether these treatments should occur before or after surgery.
Surgical Resection
Surgical resection involves removing the segment of colon that contains the tumor, along with nearby lymph nodes and a margin of surrounding tissue. This operation is performed through a traditional open incision or through laparoscopic or robotic approaches that use smaller incisions. The remaining ends of the colon are usually reconnected to restore bowel continuity, though individual circumstances vary. A colon surgeon reviews imaging, endoscopic findings, and overall health to tailor the type and extent of resection. Here’s what to expect for a resection surgery:
- Preoperative Planning: Imaging studies, lab work, and a medication review help the surgical team prepare and address individual risks.
- Anesthesia and Positioning: The patient receives anesthesia, and the operating team positions the patient’s body to allow access to the colon.
- Removal of the Diseased Segment: The surgeon identifies the tumor, divides the blood supply, and removes the section of bowel and associated lymph nodes.
- Reconnection or Diversion: The healthy ends of the colon are rejoined when appropriate, or a temporary or permanent stoma is created.
- Postoperative Recovery: After surgery, the team monitors bowel function, pain control, and wound healing, and discusses activity levels and diet progression.
Meet With a Colon Surgeon
Even with the same health condition, everyone has different needs, and what works for one person may not for another. Meeting with a surgeon allows you to review imaging, discuss pathology reports, and ask questions about operative and nonoperative options. For personalized medical advice, contact a colon and rectal surgery clinic and schedule a consultation. A consultation helps you determine whether endoscopic techniques, medications, radiation, or surgery suit your needs.
