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A rare form of gastrointestinal cancer, small intestine cancer affects the tissues of the small bowel and is therefore critical for digestion and food absorption. Although the small intestine accounts for a significant share of the digestive tract, malignancies in this area are rather rare compared to those in the colon or stomach.
Small intestine cancer can strike adenocarcinoma, carcinoid tumours, lymphoma, and sarcoma, among other forms. Symptoms typically develop gradually and may include nausea, vomiting, stomach pain or cramps, unexplained weight loss, blood in the stool, or a noticeable lump in the abdomen. Since these symptoms often coincide with other gastrointestinal problems, the diagnosis of small intestine cancer often remains delayed.
Risk factors include Crohn's disease, coeliac disease, a family history of gastrointestinal malignancies, and several genetic syndromes, including Lynch syndrome and familial adenomatous polyposis. The type and stage of the cancer will determine the treatment; still, it may comprise targeted medicines, radiation, chemotherapy, or surgery.  Early identification and knowledge of risk factors will greatly increase the survival rates and outcomes for those afflicted by this rare but severe disorder.