Small bowel cancer – Symptoms and causes – Mayo Clinic

Small bowel cancer can cause complications, including: An increased risk of other cancers. People who have small bowel cancer run a higher risk of having other types of cancers, including those that affect the colon, rectum, ovaries and the lining of the uterus (endometrium). Cancer that spreads to other parts of the body.

https://www.mayoclinic.org/diseases-conditions/small-bowel-cancer/symptoms-causes/syc-20352497