Abstract
T1 lesions have been divided into T1a (invasion of lamina propria) and T1b (invasion of submucosa) to facilitate comparison with tumors of other gastrointestinal sites Stage II has been subdivided into Stage IIA and Stage IIB The N1 category has been changed to N1 (1–3 positive lymph nodes) and N2 (four or more positive lymph nodes), leading to the division of Stage III into Stage IIIA and Stage IIIB
(Lymphomas, carcinoid tumors, and visceral sarcomas are not included)
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© 2012 American Joint Committee on Cancer
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Compton, C.C., Byrd, D.R., Garcia-Aguilar, J., Kurtzman, S.H., Olawaiye, A., Washington, M.K. (2012). Small Intestine. In: Compton, C., Byrd, D., Garcia-Aguilar, J., Kurtzman, S., Olawaiye, A., Washington, M. (eds) AJCC Cancer Staging Atlas. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-2080-4_12
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DOI: https://doi.org/10.1007/978-1-4614-2080-4_12
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