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

C22 - Liver and intrahepatic bile ducts:

Epithelial tumors
    Non-neoplastic lesion

        8170/0 Liver cell adenoma

        8170/3 Hepatocellular carcinoma, NOS
        8171/3 Hepatocellular carcinoma, fibrolamellar
        8970/3 Hepatoblastoma
        8020/3 Carcinoma, undifferentiated, NOS

Epithelial tumors: biliary
        8160/0 Bile duct adenoma
        8202/0 Microcystic adenoma

    Premalignant lesions
        8148/2 Biliary intraepithelial neoplasia, high grade
        8470/0 Mucinous cystadenoma, NOS
        8470/2 Mucinous cystadenocarcinoma, non-invasive

        8160/3 Cholangiocarcinoma

Malignancies of mixed or uncertain origin
    8980/3 Carcinosarcoma, NOS
    8180/3 Combined hepatocellular carcinoma and cholangiocarcinoma
    8963/3 Malignant rhabdoid tumor

Mesenchymal tumors
    Non-neoplastic lesions

        8860/0 Angiomyolipoma
        9121/0 Cavernous hemangioma
        9131/0 Capillary hemangioma
        9170/0 Lymphangioma, NOS
        8815/0 Solitary fibrous tumor

        9120/3 Haemangiosarcoma
        8991/3 Embryonal sarcoma
        9133/1 Epithelioid hemangioendothelioma, NOS
        9140/3 Kaposi sarcoma
        8890/3 Leiomyosarcoma, NOS
        8900/3 Rhabdomyosarcoma, NOS
        9040/3 Synovial sarcoma, NOS

Germ cell tumors
    9080/1 Teratoma, NOS
    9071/3 Yolk sac tumor
    9071/3 Hepatoid yolk sac tumor

    9716/3 Hepatosplenic T-cell lymphoma

Secondary tumours