ecDNA (IMAGE) Stanford Medicine Caption On the left, ecDNAs that link together to enhance cancer cell growth tend to be inherited together by daughter cells after cell division. On the right, in contrast, ecDNAs that are inherited randomly give more genetic variability but may be less likely to spur tumor growth. Emily Moskal/Stanford Medicine Credit Emily Moskal/Stanford Medicine Usage Restrictions The illustration must be credited Emily Moskal/Stanford Medicine. It may be used only in an editorial manner and not for any commercial, promotional, endorsement, advertising or merchandising purpose. It may be used only in conjunction with a story about the research described in this article. License Original 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.