WHO Classification of Tumours of the Digestive System 1
 
Bosman FT, Carneiro F, Hruban RH, Theise ND (Eds.)
WHO Classification of Tumours of the Digestive System.
4th Edition
International Agency for Research on Cancer: Lyon 2010



C18.1 - Appendix:




Epithelial tumors
    Premalignant lesions
        8140/0 Adenoma, NOS
            8211/0 Tubular adenoma, NOS
            8261/0 Villous adenoma, NOS
            8261/0 Villous papilloma
            8263/0 Tubulovillous adenoma, NOS
            8263/0 Papillotubular adenoma

    Serrated lesions
        8213/0 Serrated adenoma
        8213/0 Mixed adenomatous and hyperplastic polyp

    Carcinoma
        8140/3 Adenocarcinoma, NOS
            8480/3 Mucinous adenocarcinoma
            8480/3 Pseudomyxoma peritonei with unknown primary site
            8490/3 Signet ring cell carcinoma
        8020/3 Carcinoma, undifferentiated, NOS

    Neuroendocrine neoplasms
        8240/3 Carcinoid tumor, NOS
        8240/3 Typical carcinoid
        8240/3 Bronchial adenoma, carcinoid
        8249/3 Atypical carcinoid tumor
        8246/3 Neuroendocrine carcinoma, NOS
            8013/3 Large cell neuroendocrine carcinoma
            8041/3 Small cell carcinoma, NOS
            8041/3 Small cell neuroendocrine carcinoma
        8244/3 Mixed adenoneuroendocrine carcinoma
        8241/3 Enterochromaffin cell carcinoid
        8243/3 Goblet cell carcinoid
        8245/1 Tubular carcinoid

Mesenchymal tumors
    8890/0 Leiomyoma, NOS
    8890/0 Plexiform leiomyoma
    8890/0 Lipoleiomyoma
    8850/0 Lipoma, NOS
    9570/0 Neuroma, NOS
    9140/3 Kaposi sarcoma
    8890/3 Leiomyosarcoma, NOS

Secondary tumours