Another study from the May issue of Radiology found that among patients ages 18 to 35 undergoing chest CTs and abdominal CTs for cancer, trauma and abdominal pain, the short-term risk of dying from an underlying condition was 7.1% and 3.9%, respectively, compared with long-term risk from radiation-induced cancer of 0.1%.

WSJ: New Tracking of a Patient's Radiation Exposure

Symptoms of ovarian cancer can include persistent pelvic or abdominal pain, persistent bloating, difficulty eating and urinary problems, according to the charity.

BBC: Angela Davies with her husband and son

There were five symptoms that very few women identified as possibly being due to cancer: vaginal itching or burning, back or abdominal pain, being tired all the time, having to pass urine very badly or more often than usual, and bloating.

MSN: 5 signs of gynecological cancer women ignore