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WHO Classification of Tumours
WHO Classification of Tumours of the Digestive System
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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





C23-C24.0 - Gallbladder and extrahepatic biliary tract:
 
The number attached to each tumour is the ICD-O morphology code of the International Classification of Diseases for Oncology (ICD-O) [1] and the Systematized Nomenclature of Medicine (http://snomed.org).
/0 benign tumours
/1 unspecified, borderline or uncertain behaviour
/2 in situ carcinomas
/3 malignant tumours.

1. Fritz A, Percy C, Jack A, Shanmuragatnam K, Sobin LH, Parkin DM, Whelan S (Eds) International Classification of Diseases for Oncology. World Health Organization: Geneva 2000





Epithelial tumors
    Premalignant lesions
        8140/0 Adenoma, NOS
            8211/0 Tubular adenoma, NOS
            8260/0 Papillary adenoma, NOS
            8263/0 Tubulovillous adenoma, NOS
        8148/2 Biliary intraepithelial neoplasia, grade 3
        8503/0 Intracystic (gallbladder) or intraductal (bile ducts) papillary neoplasm with low- or intermediate-grade intraepithelial neoplasia
        8503/2 Intraductal papillary neoplasm (IPN) with high-grade intraepithelial neoplasia
        8470/0 Mucinous cystic neoplasm (MCN) with low- or intermediate-grade dysplasia
        8470/2 Mucinous cystic neoplasm (MCN) with high-grade dysplasia

    Carcinoma
        8140/3 Adenocarcinoma, NOS
            8144/3 Adenocarcinoma, intestinal type
            8310/3 Clear cell adenocarcinoma, NOS
            8480/3 Mucinous adenocarcinoma
            8490/3 Signet ring cell carcinoma
        8560/3 Adenosquamous carcinoma
        8503/3 Intraductal papillary neoplasm (IPN) with an associated invasive carcinoma
        8470/3 Mucinous cystic neoplasm (MCN) with an associated invasive carcinoma
        8070/3 Squamous cell carcinoma, NOS
        8020/3 Undifferentiated carcinoma

    Neuroendocrine neoplasms
        8240/3 Neuroendocrine tumor G1 (NET G1) / Carcinoid
        8249/3 Neuroendocrine tumor G2 (NET G2)
        8246/3 Neuroendocrine carcinoma, NOS
            8013/3 Large cell neuroendocrine carcinoma
            8041/3 Small cell neuroendocrine carcinoma
        8244/3 Mixed adenoneuroendocrine carcinoma
        8243/3 Goblet cell carcinoid
        8245/1 Tubular carcinoid

Mesenchymal tumors
    8693/1 Paraganglioma
    9491/0 Ganglioneuromatosis
    9580/0 Granular cell tumor, NOS
    8890/0 Leiomyoma, NOS
    9140/3 Kaposi sarcoma
    8890/3 Leiomyosarcoma, NOS
    8900/3 Rhabdomyosarcoma, NOS

Lymphomas
    9699/3 Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma)

Secondary tumours
    Secondary tumours of the gallbladder and extrahepatic bile ducts