Lungs with tumors (IMAGE) Washington University School of Medicine Caption Tumors (yellow) pervade the lungs of mice genetically prone to small cell lung cancer (left) on this computed tomography scan. Researchers at Washington University School of Medicine in St. Louis and colleagues have found that treating such mice with a double-barreled approach — a chemotherapy drug plus blocking resistance — makes the tumors virtually disappear (right). The findings open up a pathway to better therapies for one of the least treatable forms of cancer. Credit Simone Hausmann and Pawel Mazur Usage Restrictions This image is to be used in accordance with the mission, policies and guidelines of Washington University in St. Louis. Visit https://wustl.edu/about/compliance-policies/media-policies/multimedia-use/ for more information. 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.