Catalog
Neuroendocrine neoplasms of appendix
Link to WHO Definition
Neuroendocrine neoplasms of appendix – http://id.who.int/icd/entity/1590340268
Malignant neoplasms with neuroendocrine differentiation that arise in the appendix. Most are well differentiated neuroendocrine tumours (low and intermediate grade), i.e. carcinoids. Poorly differentiated neuroendocrine carcinomas (high grade) are exceedingly rare.