Ovarian cancer

Tumors arising in the ovaries are, in most cases, benign but some are truly malignant, cystic or solid form, originating from cells undergoing malignant transformation and grow in a disorderly and uncontrolled can invade and destroy nearby tissues.
Ovarian cancer causes more deaths than any other type of gynecologic cancer and accounts for 5% of cancer deaths among women. It is estimated that about 2% of women suffer from ovarian cancer at some point in their lives.
There are different types of ovarian tumors, depending on the cell from which they originate. In most cases, approximately 80% are derived from epithelial cells. The rest originates from cells called germ cells or reproductive and serving as a supporting structure of the organ.
Ovarian cancer, producing clinical manifestations in advanced stages, early detection is difficult. A study of the blood, which verified the levels of a tumor marker, CA-125, which in some cases it is useful to detect early. While it is important to consider that this analysis is not performed routinely but should take into account the presence of risk factors to apply.
In recent years, with the advent of transvaginal ultrasound, in which a small instrument is inserted into the vagina, has been detected in an earlier many of these tumors, to observe more closely the female sexual organs.