Small bowel cancer is an uncommon type of cancer that occurs in the small intestine. Your small intestine, which is also called the small bowel, is a long tube that carries digested food between your stomach and your large intestine (colon).
Blood in the stool (feces), Dark/black stools, Diarrhea, A lump in the abdomen, Pain or cramps in the abdomen, Unexplained weight loss, Episodes of abdominal pain that may be accompanied by severe nausea or vomiting.
In total, 10,945 SI cancers (IR=2.10/100,000 person-years) were diagnosed during 1992-2006, including carcinomas (n=3,412, IR=0.66), neuroendocrine cancers (n=4,315, IR=0.83), sarcomas (n=1,084, IR=0.20), and lymphomas (n=2,023, IR=0.38). For all histologic groups, males had significantly higher IRs than females, and distinct age-specific gender patterns were limited to intermediate-/high-grade lymphomas. Neuroendocrine cancer rates varied significantly by race, with rates highest among Blacks and lowest among Asians/Pacific Islanders (APIs).