Endometriosis is associated with an increased risk of ovarian cancer, study shows

Women who have endometriosis are substantially more likely to develop three distinct histological subtypes of ovarian cancer: clear cell, endometrioid, and low grade serous, research in Lancet Oncology shows (doi:10.1016/S1470-2045(11)70404-1). Previous studies have shown an association between endometriosis and invasive epithelial ovarian cancer (the most fatal malignancy of the female reproductive system) but have failed to characterise the relation. Lead author …