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Incidence of metastases related to the size of the primary gastroenteropancreatic neuroendocrine tumor

Incidence of metastases related to the size of the primary gastroenteropancreatic neuroendocrine tumor
Tumor location and size, cm Total patient numbers Nodal metastases, number of patients (%) Distant metastases, number of patients (%)
Small intestine
≤1 43 5 (12) 2 (5)
1.1 to 1.9 83 58 (70) 16 (19)
≥2 59 50 (85) 28 (47)
Appendix
≤1 431 0 0
1.1 to 1.9 53 4 (7.5) 2 (4)
≥2 33 11 (33) 4 (12)
Colon
<2 11 2 2
≥2 42 26 (62) 17 (40)
Reproduced with permission from: Rorstad O. Prognostic indicators for carcinoid neuroendocrine tumors of the gastrointestinal tract. J Surg Oncol 2005; 89:151. Copyright © 2005 Wiley-Liss. Permission from John Wiley & Sons.
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