Colon Cancer: Questions and Answers
1. What are the early symptoms of colon cancer?
Early symptoms of colon cancer are often subtle;right-sided colon cancer may present with anemia, fatigue, and an abdominal mass, while left-sided colon cancer is prone to causing bloody stools, changes in bowel habits, and intestinal obstruction.
2. What is the relationship between colon cancer and dietary habits?
A diet high in fat and low in fiber, along with excessive intake of red and processed meats, increases the risk of colon cancer.Dietary fiber helps promote bowel motility and reduces the contact time between carcinogens and the intestinal mucosa.
3. What are the surgical treatment options for colon cancer?
Surgery for colon cancer involves resecting the intestinal segment containing the tumor along with the corresponding mesentery and lymph nodes.The specific procedure—right hemicolectomy, transverse colectomy, or left hemicolectomy—is selected based on the tumor's location.
4. What is minimally invasive treatment for colon cancer?
Laparoscopic colectomy is the standard minimally invasive procedure for colon cancer, performed through small abdominal wall incisions.Robot-assisted surgery offers greater precision and flexibility during the procedure.
5. Why is chemotherapy needed after colon cancer surgery?
Adjuvant chemotherapy following surgery for stage III colon cancer is the standard of care; it reduces the risk of recurrence and prolongs survival.Adjuvant chemotherapy is also recommended for high-risk stage II patients.
6. What are the treatment options for advanced colon cancer?
Advanced colon cancer is primarily managed with systemic therapy.Chemotherapy combined with targeted agents—such as bevacizumab or anti-EGFR drugs—can control disease progression.Immunotherapy is indicated for patients with MSI-H status.
7. How is follow-up conducted after colon cancer treatment?
Regularly undergo colonoscopy, abdominal CT scans, and CEA testing post-surgery—every 3–6 months during the first two years.Monitor for recurrence and metachronous multiple primary cancers.Maintain a high-fiber diet and a regular daily routine.
