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WHO Classification of Tumours
WHO Classification of Tumours of the Urinary System and Male Genital Organs
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Eble JE, Sauter G, Epstein JI, Sesterhenn IA (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of the Urinary System and Male Genital Organs.
3rd Edition
IARC Press: Lyon 2004

C65-C68 - Urinary system: Renal pelvis, ureter, bladder, urethra:
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

Infiltrating urothelial carcinomas
    8120/3 Transitional cell carcinoma
        8131/3 Transitional cell carcinoma, micropapillary
        8082/3 Lymphoepithelial carcinoma
        8122/3 Urothelial cell carcinoma, sarcomatoid
        8031/3 Giant cell carcinoma

Non-invasive urothelial neoplasias
    8120/2 Urothelial carcinoma in situ
    8130/2 Papillary urothelial carcinoma, non-invasive
    8130/1 Papillary urothelial neoplasm of low malignant potential
    8120/1 Urothelial papilloma, NOS

Squamous neoplasms
    8070/3 Squamous cell carcinoma, NOS
    8051/3 Verrucous carcinoma, NOS
    8052/0 Squamous cell papilloma, NOS

Glandular neoplasms
    8140/3 Adenocarcinoma, NOS
    8261/0 Villous adenoma, NOS

Neuroendocrine tumours
    8041/3 Small cell neuroendocrine carcinoma
    8240/3 Neuroendocrine tumor G1 (NET G1) / Carcinoid

    8720/3 Melanoma, NOS

Mesenchymal tumours
    8900/3 Rhabdomyosarcoma, NOS
    8890/3 Leiomyosarcoma, NOS
    9120/3 Angiosarcoma
    9180/3 Osteosarcoma, NOS
    8830/3 Malignant fibrous histiocytoma
    8890/0 Leiomyoma, NOS