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Table 3 Histopathological and immunohistochemical data and staging

From: Clinicopathological features and surgical outcomes of neuroendocrine tumors of ampulla of Vater

Case Size
(cm)
Lymph node metastasis (n) Mitosis
(/10HPF)
Ki-67
(%)
Lymphovascular
invasion
Perineural
invasion
WHO ENETS UICC
1 2.2 No (0/12) 1 1 Yes No G1 IIA IA
2 1.2 No (0/20) 102 70 Yes No G3 IIB IIA
3 1.5 Yes (1/17) 5 3 No No G2 IIIB IIB
4 2.6 Yes (4/20) 4 4 Yes No G2 IIIB IIB
5 2.0 No (0/50) 1 5 No No G2 IIA IB
  1. ENETS European Neuroendocrine Tumour Society, UICC International Union Against Cancer, WHO World Health Organization