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WHO Classification of Tumours
WHO Classification of Tumours of the Breast and Female Genital Organs
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Tavassoli FA, Devilee P (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of the Breast and Female Genital Organs.
3rd Edition
IARC Press: Lyon 2003

C56 - Ovary:
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

    Serous tumours
        8441/3 Serous cystadenocarcinoma, NOS
        8442/1 Serous cystadenoma, borderline malignancy
        8460/0 Papillary serous cystadenoma, NOS
        8441/0 Serous cystadenoma, NOS
        8461/0 Serous surface papilloma
        9014/0 Serous adenofibroma, NOS

    Mucinous tumours
        8480/3 Mucinous adenocarcinoma
        9015/3 Mucinous adenocarcinofibroma
        8472/1 Mucinous borderline tumour
        8470/0 Mucinous cystic neoplasm (MCN) with low- or intermediate-grade dysplasia
        9015/0 Mucinous adenofibroma, NOS

    Endometrioid tumours including variants with squamous differentiation
        8380/3 Endometrioid adenocarcinoma, NOS
        8381/3 Adenocarcinofibroma
        8950/3 Mullerian mixed tumor
        8933/3 Adenosarcoma
        8931/3 Endometrial stromal sarcoma, low grade
        8805/3 Undifferentiated sarcoma
        8313/0 Clear cell adenofibroma

    Transitional cell tumours
        8120/3 Transitional cell carcinoma
        9000/3 Brenner tumor, malignant
        9000/1 Brenner tumor, borderline malignancy
        9000/0 Brenner tumor, NOS

    Squamous cell tumours
        8070/3 Squamous cell carcinoma, NOS

    Mixed epithelial tumours
        8323/3 Mixed cell adenocarcinoma
        8323/1 Mixed epithelial tumor (borderline)
        8323/0 Mixed epithelial tumour (benign)

    Undifferentiated and unclassified tumours
        8020/3 Undifferentiated carcinoma
        8140/3 Adenocarcinoma, NOS

    Granulosa-stromal cell tumours
        8620/1 Granulosa cell tumor, adult type
        8622/1 Granulosa cell tumor, juvenile
        8600/0 Thecoma, NOS
        8601/0 Thecoma, luteinized
        8810/0 Fibroma, NOS
        8810/1 Cellular fibroma
        8810/3 Fibrosarcoma, NOS
        8593/1 Stromal tumor with minor sex cord elements
        8602/0 Sclerosing stromal tumor

    Sertoli-stromal cell tumours
        8631/0 Sertoli-Leydig cell tumor, well differentiated
        8631/1 Sertoli-Leydig cell tumor of intermediate differentiation
        8634/1 Sertoli-Leydig cell tumor, intermediate differentiation, with heterologous elements
        8634/3 Sertoli-Leydig cell tumor, poorly differentiated, with heterologous elements
        8631/3 Sertoli-Leydig cell tumor, poorly differentiated
        8633/1 Sertoli-Leydig cell tumor, retiform
        8640/1 Sertoli cell tumor, NOS

    Sex cord-stromal tumours of mixed or unclassified cell types
        8623/1 Sex cord tumor with annular tubules
        8632/1 Gynandroblastoma
        8590/1 Sex cord-gonadal stromal tumor, NOS

    Steroid cell tumours
        8610/0 Luteoma, NOS
        8660/0 Hilus cell tumor
        8650/1 Leydig cell tumor, NOS
        8670/0 Steroid cell tumor, NOS
        8670/3 Steroid cell tumor, malignant

    Germ cell tumours
        9060/3 Dysgerminoma
        9071/3 Yolk sac tumor
        9070/3 Embryonal carcinoma, NOS
        9072/3 Polyembryoma
        9100/3 Choriocarcinoma, NOS
        9085/3 Mixed germ cell tumor
        9080/3 Teratoma, malignant, NOS
        9080/0 Teratoma, benign
        9084/0 Dermoid cyst, NOS

    Monodermal teratoma and somatic-type tumours associated with dermoid cysts
        9090/0 Struma ovarii, NOS
        9090/3 Struma ovarii, malignant
        8240/3 Neuroendocrine tumor G1 (NET G1) / Carcinoid
        8243/3 Goblet cell carcinoid
        9091/1 Strumal carcinoid
        9391/3 Ependymoma, NOS
        9473/3 Primitive neuroectodermal tumor, NOS
        9501/3 Medulloepithelioma, NOS
        9440/3 Glioblastoma multiforme (ovary)
        8720/3 Melanoma, NOS
        8720/0 Melanocytic nevus
        8410/0 Sebaceous adenoma
        8410/3 Sebaceous adenocarcinoma
        9363/0 Melanotic neuroectodermal tumor

    Mixed germ cell-sex cord-stromal tumours
        9073/1 Gonadoblastoma

    Tumours of the rete ovari
        9110/3 Mesonephric adenocarcinoma
        9110/0 Mesonephroma, benign

    Miscellaneous tumours
        8041/3 Small cell neuroendocrine carcinoma
        8013/3 Large cell neuroendocrine carcinoma
        8576/3 Hepatoid carcinoma
        9050/3 Mesothelioma, malignant
        8960/3 Nephroblastoma, NOS
        9100/0 Hydatidiform mole, NOS
        8200/3 Adenoid cystic carcinoma
        8090/1 Basal cell tumor
        9110/1 Mesonephric tumor, NOS
        8693/1 Paraganglioma
        8840/0 Myxoma, NOS