Small Bowel Cancer

Small intestine cancer

From Wikipedia

Classification and external resources
ICD-10 C17.
ICD-9 152
MeSH D007414



In oncology, small intestine cancer, also small bowel cancer and cancer of the small bowel, is a cancer of the small intestine. It is relatively rare compared to other gastrointestinal malignancies such as gastric cancer (stomach cancer) and colorectal cancer.[1]

Small intestine cancer can be subdivided into duodenal cancer (the first part of the small intestine) and cancer of the jejunum and ileum (the later two parts of the small intestine). Duodenal cancer has more in common with stomach cancer, while cancer of the jejunum and ileum have more in common with colorectal cancer.

Several different subtypes of small intestine cancer exist. These include:

1. adenocarcinoma
2. gastrointestinal stromal tumor
3. lymphoma
4. ileal
5. carcinoid tumo
   

Risk factors
Risk factors for small intestine cancer include[2][3]:

1. Crohn's Disease
2. Celiac disease
3. Radiation exposure
4. Hereditary GI
5. cancer syndromes: familial adenomatous polyposis, hereditary nonpolyposis
   colorectal cancer, Peutz-Jeghers syndrome
6. Males are 25% more likely to develop the disease

Benign tumours and conditions that may be mistaken for
cancer of the small bowel:

1. Hamartoma
2. Tuberculosis
   

References
1.^ Terry SM, Santora T. Benign Neoplasm of the Small Intestine. eMedicine.com. URL: http://www.emedicine.com/med/topic2652.htm. Accessed on: June 2, 2006.
2.^ Delaunoit T, Neczyporenko F, Limburg PJ, Erlichman C (March 2005). "Pathogenesis and risk factors of small bowel adenocarcinoma: a colorectal cancer sibling?". Am. J. Gastroenterol. 100 (3): 703–10. doi:10.1111/j.1572-0241.2005.40605.x. PMID 15743371.
3.^ Chen AC, Neugut AI. Malignant Neoplasms of the Small Intestine. eMedicine.com. URL: http://www.emedicine.com/MED/topic2651.htm. Accessed on: June 2, 2006.



eTumors: digestive system neoplasia (C15-C26/D12-D13, 150-159/211)

GI tract Upper GI tract Esophagus Squamous cell carcinoma · Adenocarcinoma

Stomach Gastric carcinoma · Signet ring cell carcinoma · Gastric lymphoma (MALT lymphoma) · Linitis plastica


Lower GI tract Small intestine Duodenal cancer (Adenocarcinoma)

Appendix Carcinoid · Pseudomyxoma peritonei

Colon/rectum colorectal polyp: Peutz-Jeghers syndrome · Juvenile polyposis syndrome · Familial adenomatous polyposis/Gardner's syndrome · Cronkhite–Canada disease


neoplasm: Adenocarcinoma · Familial adenomatous polyposis · Hereditary nonpolyposis colorectal cancer

Anus Squamous cell carcinoma


Upper and/or lower Gastrointestinal stromal tumor · Krukenberg tumor (metastatic)


Accessory Liver malignant: Hepatocellular carcinoma (Fibrolamellar) · Hepatoblastoma

benign: Hepatocellular adenoma · Cavernous hemangioma

hyperplasia: Focal nodular hyperplasia · Nodular regenerative hyperplasia

Biliary tract bile duct: Cholangiocarcinoma · Klatskin tumor
gallbladder: Gallbladder cancer

Pancreas exocrine pancreas: Adenocarcinoma · Pancreatic ductal carcinoma
cystic neoplasms: Serous microcystic adenoma · Intraductal papillary mucinous neoplasm · Mucinous cystic neoplasm · Solid pseudopapillary neoplasm
Pancreatoblastoma


Peritoneum Primary peritoneal carcinoma · Peritoneal mesothelioma · Desmoplastic small round cell tumor