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 malignant glandular epithelial tumour characterised by the presence of clear and hobnail cells. The tumour is highly associated with ovarian endometriosis, pelvic endometriosis and paraendocrine hypercalcemia.