Colon tumor - Staging – neuroendocrine tumors

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Staging – neuroendocrine tumors

Reviewers: Charanjeet Singh, M.D. (see Reviewers page)
Revised: 2 May 2012, last major update May 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

Primary tumor (T)
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● TX: primary tumor cannot be assessed
● T0: no evidence of primary tumor
● T1: tumor invades lamina propria or submucosa and size 2 cm or less
● T1a: tumor size less than 1 cm in greatest dimension
● T1b: tumor size 1-2 cm in greatest dimension
● T2: tumor invades muscularis propria or size more than 2 cm with invasion of lamina propria or submucosa
● T3: tumor invades through the muscularis propria into the subserosa, or into non-peritonealized pericolic or perirectal tissues
● T4: tumor invades peritoneum or other organs

● For any T, add (m) for multiple tumors

Regional lymph nodes (N)
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● NX: regional lymph nodes cannot be assessed
● N0: no regional lymph node metastasis
● N1: regional lymph node metastasis

Distant Metastasis (M)
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● M0: no distant metastasis
● M1: distant metastasis

Anatomic stage / prognostic groups
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● Stage I: T1 N0 M0
● Stage IIA: T2 N0 M0
● Stage IIB: T3 N0 M0
● Stage IIIA: T4 N0 M0
● Stage IIIB: any T N1 M0
● Stage IV: M1 (any T, any N)

End of Colon tumor > Other > Staging – neuroendocrine tumors

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