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Table 5 TNM staging of colorectal carcinoid tumors according to AJCC, seventh edition (n = 63)

From: Clinicopathological analysis of colorectal carcinoid tumors and patient outcomes

TNM stage (clinical or pathological)

Number (%)

I

T1aN0M0

41 (65.1)

 

T1bN0M0

9 (14.3)

IIa

T2N0M0

4 (6.3)

IIb

T3N0M0

1 (1.6)

IIIa

T4N0M0

0

IIIb

Any T, N1M0

4 (6.3)

IV

Any T, any N, M1

4 (6.3)

  1. T1, tumor invades lamina propria or submucosa and size ≤ 2 cm; T1a, tumor size < 1 cm in greatest dimension; T1b, tumor size 1 to 2 cm in greatest dimension; T2, tumor invades muscularis propria or size > 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; N0, no regional lymph node metastasis; N1, regional lymph node metastasis; M0, no distant metastasis; M1, distant metastasis.
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World Journal of Surgical Oncology

ISSN: 1477-7819

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