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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

C62-C63 - Testis/Male genital organs:
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

Germ Cell Tumours
    Precursor lesion
        9064/2 Intratubular malignant germ cells

    Tumours of one histological type (pure forms)
        9061/3 Seminoma, NOS
        9063/3 Spermatocytic seminoma
        9070/3 Embryonal carcinoma, NOS
        9071/3 Yolk sac tumor
        Trophoblastic tumours
            9100/3 Choriocarcinoma, NOS
            Trophoblastic neoplasms other than choriocarcinoma
                9104/1 Placental site trophoblastic tumor
        9080/3 Teratoma, malignant, NOS
            9084/0 Dermoid cyst, NOS
            9084/3 Teratoma with malignant transformation

    Tumours of more than one histological type (mixed forms)
        9081/3 Mixed embryonal carcinoma and teratoma
        9085/3 Mixed teratoma and seminoma
        9101/3 Choriocarcinoma combined with other germ cell elements

Sex Cord/Stromal Tumours
    8592/1 Sex cord-gonadal stromal tumor, mixed forms
    8590/3 Malignant sex cord/gonadal stromal tumor

    8650/1 Leydig cell tumor, NOS
    8650/3 Leydig cell tumor, malignant
    8640/1 Sertoli cell tumor, NOS
        8641/0 Sertoli cell tumor with lipid storage
        8642/1 Large cell calcifying Sertoli cell tumor
    8640/3 Sertoli cell carcinoma
    8620/1 Granulosa cell tumor, adult type
        8622/1 Granulosa cell tumor, juvenile
    Tumours of the thecoma/fibroma group
        8600/0 Thecoma, NOS
        8810/0 Fibroma, NOS
    Sex cord/gonadal stromal tumour
        8591/1 Sex cord-gonadal stromal tumor, incompletely differentiated
    Tumours containing both germ cell and sex cord/gonadal stromal elements
        9073/1 Gonadoblastoma

Miscellaneous Tumours of the Testis
    8240/3 Neuroendocrine tumor G1 (NET G1) / Carcinoid
    Tumours of ovarian epithelial types
        8442/1 Serous cystadenoma, borderline malignancy
        8441/3 Serous cystadenocarcinoma, NOS
        8380/3 Endometrioid adenocarcinoma, NOS
        8470/0 Mucinous cystic neoplasm (MCN) with low- or intermediate-grade dysplasia
        8470/3 Mucinous cystic neoplasm (MCN) with an associated invasive carcinoma
        9000/0 Brenner tumor, NOS
    8960/3 Nephroblastoma, NOS

Tumours of Collecting Ducts and Rete
    8140/0 Adenoma, NOS
    8140/3 Adenocarcinoma, NOS

Tumours of Paratesticular Structures
    9054/0 Adenomatoid tumor, NOS
    9050/3 Mesothelioma, malignant
    Benign mesothelioma
        9052/0 Well differentiated papillary mesothelioma, benign
        9055/0 Multicystic mesothelioma, benign
    8140/3 Adenocarcinoma of the epididymis
    8450/0 Papillary cystadenoma, NOS
    9363/0 Melanotic neuroectodermal tumor
    8806/3 Desmoplastic small round cell tumor