Malignant neoplasms of ovary

**Definition:** A primary or metastatic malignant neoplasm [primary neoplasm spreading elsewhere] involving the ovary. Most primary malignant ovarian neoplasms are either carcinomas (serous, mucinous, or endometrioid adenocarcinomas) or malignant germ cell tumours.

**Exclusions:** - Malignant mesenchymal neoplasms - Malignant neoplasm metastasis in ovary