Mesothelioma (IMAGE) Johns Hopkins Medicine Caption A spheroid of mesothelioma tumor cells used to study the deadly form of lung cancer in the laboratory. Credit National Cancer Institute, National Institutes of Health 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.