What is the most aggressive form of ovarian cancer?

What is the most aggressive form of ovarian cancer?

HGSOC (high-grade serous ovarian cancer) is a very aggressive ovarian cancer. The cancer grows slowly in your fallopian tubes at first. But it then spreads rapidly once it reaches your ovaries. Unfortunately, most people with HGSOC have advanced (metastatic) ovarian cancer by the time they get a diagnosis.