"A more complete list of ovarian epithelial tumours is as follows:"
"These can range from being cystic, to solid, to anything in between. As a crude rule, the likelihood of malignancy increases with increasing solid-tissue elements and thicker septae 2. While there are some common features, there are also many variations and it may be best to refer to subarticles for specific imaging features."
"serous: resembling epithelium lining the Fallopian tubes"
"e.g. three-tier FIGO system, two-tier MDACC system for serous tumours"
"Brenner tumour: 2-3% of ovarian epithelial neoplasms"
"There is a difference in the frequency of ovarian tumour subtypes depending on menopausal status 6:"