DUODENAL & SMALL BOWEL CANCER

What are Duodenal and Small Bowel Cancers?

These are cancers that start in the inner lining of the small intestine.
They are rare compared to stomach or colon cancer, but can be serious if not treated early.

3. Why are these cancers uncommon?

The small bowel has:

• Fast movement of food

• Less exposure to harmful substances

• Protective enzymes

Because of this, cancers are less common here than in the large intestine.

TYPES OF SMALL BOWEL CANCERS

4. What types of cancer occur in the small bowel?

Common types include:

• Adenocarcinoma – most common in duodenum

• Carcinoid (Neuroendocrine Tumor)

• Lymphoma

• GIST (Gastrointestinal Stromal Tumor)

RISK FACTORS

5. Who is at risk?

Risk factors include:

• Family history of intestinal cancers

• Crohn’s disease

• Celiac disease

• Smoking and alcohol

• Genetic syndromes (like FAP, Lynch syndrome)

• Long-standing inflammation

SYMPTOMS

6. What are the common symptoms?

Symptoms are often vague and late, such as:

• Abdominal pain

• Vomiting

• Weight loss

• Anemia (low blood)

• Black stools or bleeding

• Intestinal blockage

• Feeling full early

Because symptoms are mild at first, diagnosis is often delayed.

DIAGNOSIS

7. How are these cancers diagnosed?

Doctors use:

• Endoscopy – camera test to see inside duodenum

• CT Scan / MRI – shows tumor size and spread

• Biopsy – small tissue sample to confirm cancer

• Capsule Endoscopy – swallowing a tiny camera capsule

• Blood tests – to check anemia and general health

 

ROLE OF SURGERY – MOST IMPORTANT PART

8. Is surgery important in small bowel cancers?

Yes. Surgery is the main and most effective treatment, especially if the cancer is detected early and has not spread widely.

Surgery offers the best chance of cure.

9. What is the goal of surgery?

• Remove the tumor completely

• Remove surrounding lymph nodes

• Restore bowel continuity

• Relieve blockage or bleeding

10. What surgeries are done for Duodenal Cancer?

a) Whipple Surgery (Pancreaticoduodenectomy)

Done when cancer is in first or second part of duodenum.

In this surgery:

• Part of stomach

• Duodenum

• Head of pancreas

• Gall bladder

• Bile duct
  are removed and reconnected.

It is a major but life-saving surgery.

b) Segmental Duodenal Resection

If tumor is small and in later parts of duodenum, only a small segment is removed.

11. What surgeries are done for Jejunum and Ileum Cancers?

• Segmental Resection

  • Remove the affected bowel segment.

  • Join the two healthy ends.

  • Remove nearby lymph nodes.

This is usually a simpler surgery than Whipple.

12. Can surgery be done laparoscopically?

Yes, in selected cases.
Laparoscopic (keyhole) surgery offers:

• Smaller cuts

• Faster recovery

• Less pain

But large or advanced tumors may need open surgery.

WHEN SURGERY IS NOT CURATIVE

13. What if cancer has spread?

If cancer has spread widely:

• Surgery may still help to relieve blockage or bleeding

• Called palliative surgery

• Goal is comfort and quality of life, not cure

OTHER TREATMENTS

14. Are chemotherapy or radiation used?

Yes, depending on cancer type:

• Chemotherapy – common for adenocarcinoma and lymphoma

• Targeted therapy – for GIST

• Radiation – less commonly used

These are often given after surgery or when surgery is not possible.

RECOVERY AND OUTCOME

15. What is the recovery after surgery?

• Hospital stay: 5–14 days depending on surgery type

• Normal diet gradually resumed

• Full recovery: 4–8 weeks

• Regular follow-up required

16. What affects survival?

• Stage of cancer

• Tumor size

• Lymph node involvement

• Complete tumor removal

• Patient’s general health

Early detection + complete surgery = Best outcomes

SIMPLE TAKE-HOME MESSAGE

Duodenal and small bowel cancers are rare but serious.
Symptoms are often vague, so early testing is important.
Surgery is the main and most effective treatment and offers the best chance of cure, especially when done early.
Even in advanced cases, surgery can relieve symptoms and improve quality of life.