- At least 4 fresh samples of tumor tissue (1 x 1 cm tissue section) will be collected for research purposes during the laparoscopic exam. Tissue may be collected from the ovary (2 samples), peritoneum, omentum, diaphragm, or other sites. All samples will be stored at the MD Anderson Gynecologic Oncology Tumor Bank. Participant's samples will be stored under a unique identifier known to only authorized members of the study team. The assigned unique identifier will ensure protection of participant's private health information. Samples will be stored at the MD Anderson Gynecologic Oncology Tumor Bank indefinitely.