ICD-11

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.

A slow-growing serous adenocarcinoma that arises from the ovary. It usually originates from borderline neoplastic processes or adenofibromas. It is characterised by the presence of low grade cytologic features and infrequent mitotic figures.