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Table 2 Classification of MiNEN according to their grade of malignancy

From: Title: pancreatic‐type mixed acinar neuroendocrine carcinoma of the stomach: a case report and review of the literature

  Non-neuroendocrine component Neuroendocrine component
High-grade MiNEN Carcinomaa or adenoma Poorly differentiated neuroendocrine carcinoma (G3) of small- or large-cell type
Intermediate-grade MiNEN Carcinomaa Well-differentiated neuroendocrine tumour (G1-G2)
  Amphicrine carcinomas  
Low-grade MiNEN Adenoma Well-differentiated neuroendocrine tumour (G1-G2)
  1. Adapted from La Rosa et al [7]. a Carcinoma generally consists of adenocarcinoma but can be squamous-cell or acinar-cell carcinoma as well