A Peek into Lymph Nodes (1 of 2) (IMAGE) Tohoku University Caption Researchers have developed a new method to detect cancer earlier in the lymph nodes involving micro-CT. The micro-CT scans show how a contrast agent is blocked from more and more of the lymph node, indicating tumor development within the first month of infection. Credit Tohoku University Usage Restrictions Credit: Tohoku University 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.