The coronal reconstruction of CT-PET performed before radiation therapy shows the metabolism of the left lung neoplasm, presenting with dendritic branches in connection with the parietal pleura and mediastinum

Before the radio-chemotherapy, CT-PET shows the dorsal segment of the upper lobe of the left lung in close contact with the posterior parietal pleura, a solid speculated mass with irregular margins, which has extensive metabolism. Lymphadenopathy is associated with increased deposition of FDG at the level of the aorto-pulmonary window and right hilum