Ovary Comparison (IMAGE) University of North Carolina Health Care Caption Left image shows: normal mouse ovary. Right image shows: mouse ovary with tumors after for weeks due to specific mutations in the genes ARID1A and PIK3CA. Credit Ron Chandler, Ph.D., UNC School of Medicine Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.