Lung Cancer Radiotherapy (IMAGE) University of Würzburg Caption On the left, a stained adenocarcinoma from the lung. The enlarged section B shows healthy lung tissue, the enlarged section C an adenocarcinoma. Section D shows the PET-CT of a metabolically active central lung tumour, close to the trachea, heart and oesophagus. The irradiation dose distribution is shown in colour: Desired dose 100% in the tumour and 80% in the extended tumour area. 25% and 10% of the irradiation dose (turquoise and blue lines) in the healthy tissue for technical reasons. Credit Oliver Hartmann / University of Würzburg; Thomas Fischer, UKW 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.