What is it?

The small bowel is a rare site for malignancies, either primary or secondary. The most common primary tumors that may reach the small intestines by metastases are lung, breast and gastric cancer.

2 Alikes with Secondary Malignant Neoplasm of Small Bowel

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Secondary Malignant Neoplasm of Small Bowel.

Additional names

This group contains additional names:
- Cancer metastatic to duodenum
- Cancer metastatic to small intestine

Signs & symptoms

Symptoms may include abdominal pain, nausea, fatigue, vomiting, unintentional weight loss, bloody stools, watery diarrhea and skin flushing.


Diagnosis of secondary malignancy in a small bowel is done by medical history, physical examination and imaging tests such as CT, MRI or PET-CT. Moreover, endoscopic tests can be used such as upper and lower endoscopies, capsule endoscopy or single/double balloon enteroscopy.


Treatment depends on the primary tumor and its characteristics and on many more aspects. Treatment may include surgery, chemotherapy, targeted drug therapy and immunotherapy.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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