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Cancer Epidemiology and Prevention$
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Michael Thun, Martha S. Linet, James R. Cerhan, Christopher A. Haiman, and David Schottenfeld

Print publication date: 2017

Print ISBN-13: 9780190238667

Published to Oxford Scholarship Online: December 2017

DOI: 10.1093/oso/9780190238667.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 19 October 2021

Small Intestine Cancer

Small Intestine Cancer

(p.671) 35 Small Intestine Cancer
Cancer Epidemiology and Prevention

Jennifer L. Beebe-Dimmer

Fawn D. Vigneau

David Schottenfeld

Oxford University Press

The small intestine extends 6–7 meters from the gastric pylorus to its insertion into the large intestine. Its mucosal surface contains 90% of the absorptive surface area of the digestive tract. Remarkably, in 2015, only about 3% of digestive system cancers and less than 1% of digestive cancer deaths in the United States were observed in the small intestine. In contrast, approximately 50% of cancers in the digestive tract were diagnosed in the large intestine, which measures just 1.5 meters in length. Cancers of the small intestine are among the most heterogeneous of gastrointestinal neoplasms, encompassing pathologic subtypes of neuroendocrine carcinoid, adenocarcinoma, lymphoma, and gastrointestinal stromal tumors. Adenocarcinoma accounted for ~25% to–35% of cancers in the small intestine, in contrast to over 90% of cancers in the large intestine. Genetic syndromes, such as familial adenomatous polyposis (FAP) and hereditary non-polyposis colorectal cancer (HNPCC), predispose to adenocarcinoma in the small intestine.

Keywords:   cancer, small intestine, neuroendocrine carcinoid, adenocarcinoma, non-Hodgkin lymphoma, gastrointestinal stromal tumor

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