Types of ovarian cancer
Most ovarian cancers start in the cells that cover the surface of the ovary (the epithelium) and are called epithelial ovarian cancers.
There are several types of epithelial ovarian cancer.
serous – the most common type
undifferentiated or unclassifiable.
They are currently all treated in a similar way.
There are also non-epithelial cancers that can affect the ovaries. This section does not cover treatment for these. We have separate information on non-epithelial ovarian cancers, such as germ cell tumours (ovarian teratomas) and sarcomas.