Small Intestine Cancer (Lymphoma of the Small Intestine)
- What is Small Intestine Cancer?
- Who gets Small Intestine Cancer?
- Predisposing Factors
- Progression
- Probable Outcomes
- How is Small Intestine Cancer Diagnosed?
- How is Small Intestine Cancer treated?
- Small Intestine Cancer References
- Drugs/Products Associated with Small Intestine Cancer
What is Small Intestine Cancer?
Lymphomas of the small bowel may be primary (i.e. arising from the small bowel lymph tissue) or secondary to a systemic lymphoma.The small bowel is composed of the duodenum, jejenum, and ileum. It is the part of the Gastro-Intestinal tract extending from the pyloric sphincter of the stomach to the ileo-caecal valve separating the ileum from the colon (large bowel).

The small bowel is important for the breakdown and absorption of nutrients from digested food. Food that is partly digested by the acids in the stomach continues to be broken down by enzymes from the pancreas - which drain into the duedenum at the ampulla of vater. Bile salts from the liver and gallbladder also drain into the duedenum at the ampulla of vater. After further digestion, food constituents such as proteins, fats, and carbohydrates are broken down to small building blocks and absorbed into the enteric circulation.
Who gets Small Intestine Cancer?
Primary lymphomas of the small intestine are rare - comprising 1-3% of gastro-intestinal malignancies, however, they are the second most common small bowel tumour after adenocarcinomas.Predisposing Factors
Predisposing factors may include:Progression
The boewl cancer may grow locally into the lumen of the bowel causing obstruction, or sometimes causing perforation. Sometimes the bowel cancer spread along the mucosal surface to involve a wide area - causing malabsorption.Lymph node spread to mesenteric nodes, and subsequently other lymph node groups and systemic spread may occur similar to other lymphomas.
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