Once you are scheduled for surgery, you will be asked to provide a blood specimen once only. The blood sample will be prior to your surgery. The sample will consist of 30-50 ml of blood (about 2-3 tablespoons) drawn from a vein in your arm. The blood specimen will be processed and blood serum specimens stored, then tested with the OvaRI assay which looks at proteomic patterns indicative of cancer or non-cancer. Your serum specimens will be assigned a coded identification number to protect your privacy. Your research blood will be drawn at the time of your routine pre-operative blood work visit or at the time of surgery depending on scheduling. The only risks and potential discomforts outside of your surgery are associated with the blood draw.