Oftentimes imaging tests like ultrasound or MRI can determine if an ovarian cyst or tumor is benign or malignant. They may also want to test your blood for CA-125, a tumor marker, or preform a biopsy if there is any question. High levels of CA-125 may indicate the presence of ovarian cancer.
What percentage of ovarian cysts are cancerous?
Complex ovarian cysts may need further treatment. Five to 10 percent of women need surgery to remove an ovarian cyst. Thirteen to 21 percent of these cysts turn out to be cancerous.
Can an ovarian cyst turn to cancer?
Most ovarian cysts are harmless and often clear up on their own without treatment. Rarely, some types of ovarian cysts can develop into ovarian cancer. The risk of a cyst becoming cancer is higher in people who have been through menopause.
Can you tell if a cyst is cancerous from an ultrasound?
Ultrasound cannot tell whether a tumor is cancer. Its use is also limited in some parts of the body because the sound waves can’t go through air (such as in the lungs) or through bone.