Figure 1

Targeted three-dimensional intensity modulated radiation therapy and image-guided radiation therapy (IMRT/IGRT) plan depicting the high dose areas of radiation treatment in the lung pleura and chest wall of the thymoma patient. Color changes from red to light yellow to greenish blue indicate the radiation dose from highest (in the central area) to the lowest (in the peripheral area) while adequately covering the pericardium and minimizing the radiation effect on the heart.