Three-dimensional Tb granuloma (IMAGE) University of Alabama at Birmingham Caption Three-dimensional segmentation of ginger-root shaped necrotic lesions (yellow) and surrounding vasculature (red) within a sample of Mycobacterium tuberculosis-infected human lung tissue (transparent surface). Credit Africa Health Research Institute Usage Restrictions None 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.