Ovary Comparison (image) University of North Carolina Health Care Share Print E-Mail 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 Share Print E-Mail 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.