| Epithelial tumors |
| Serous tumors |
- Benign
- Serous cystadenoma
- Serous adenofibroma
- Serous surface papilloma
- Borderline
- Malignant
- Low-grade serous carcinoma
- High-grade serous carcinoma
|
| Mucinous tumors |
- Benign
- Mucinous cystadenoma
- Mucinous adenofibroma
- Borderline
- Mucinous borderline tumor
- Malignant
|
| Endometrioid tumors |
- Benign
- Endometrioid cystadenoma
- Endometrioid adenofibroma
- Borderline
- Endometrioid borderline tumor
- Malignant
|
| Clear cell tumors |
- Benign
- Clear cell cystadenoma
- Clear cell adenofibroma
- Borderline
- Clear cell borderline tumor
- Malignant
|
| Seromucinous tumors |
- Benign
- Seromucinous cystadenoma
- Seromucinous adenofibroma
- Borderline
- Seromucinous borderline tumor
- Malignant
|
| Brenner tumors |
- Benign Brenner tumor
- Borderline Brenner tumor
- Malignant Brenner tumor
|
| Other |
- Mesonephric-like adenocarcinoma
- Undifferentiated and dedifferentiated carcinoma
- Carcinosarcoma
- Mixed carcinoma
|
| Mesenchymal tumors |
- Endometrioid stromal sarcoma
- Smooth muscle tumors
- Ovarian myxoma
- Other
|
| Mixed epithelial and mesenchymal tumors |
| |
| Sex cord-stromal tumors |
| Pure stromal tumors |
- Ovarian fibroma
- Thecoma
- Luteinized thecoma associated with sclerosing peritonitis
- Sclerosing stromal tumor
- Microcystic stromal tumor
- Signet-ring stromal tumor
- Leydig cell tumor
- Steroid cell tumor
- Ovarian fibrosarcoma
|
| Pure sex cord tumors |
- Adult granulosa cell tumor
- Juvenile granulosa cell tumor
- Sertoli cell tumor
- Sex cord tumor with annular tubules
|
| Mixed sex cord-stromal tumors |
- Sertoli-Leydig cell tumor
- Sex cord-stromal tumors NOS
- Gynandroblastoma
|
| Germ cell tumors |
- Mature teratoma
- Immature teratoma
- Dysgerminoma
- Yolk sac tumor
- Embryonal carcinoma
- Nongestational choriocarcinoma
- Mixed germ cell tumor
|
| Monodermal teratoma and somatic-type tumors arising from a dermoid cyst |
- Struma ovarii
- Carcinoid
- Neuroectodermal-type tumors
- Monodermal cystic teratomas
- Somatic neoplasms arising from teratomas
|
| Germ cell-sex cord-stromal tumors |
- Gonadoblastoma
- Mixed germ cell-sex cord-stromal tumor, unclassified
|
| Miscellaneous tumors |
- Tumors of Rete ovarii
- Rete cystadenoma
- Rete adenoma
- Rete adenocarcinoma
- Wolffian tumor
- Solid pseudopapillary tumor
- Small cell carcinoma, hypercalcaemic type
- Wilms tumor
|
| Mesothelial tumors |
- Refer to WHO 2020 content on tumors of the peritoneum
|
| Tumor-like lesions |
- Follicle cyst
- Corpus luteum cyst
- Large solitary luteinized follicle cyst
- Hyperreactio luteinalis
- Pregnancy luteoma
- Stromal hyperplasia
- Stromal hyperthecosis
- Fibromatosis
- Massive oedema
- Leydig cell hyperplasia
|
| Metastases |
| |
