Figure 16b. Biopsy-proved poorly differentiated non-small cell carcinoma in the native left lung in a 56-year-old man with idiopathic pulmonary fibrosis and a right lung transplant. (a) Axial CT image shows a large, conglomerate pulmonary mass in the left lower lobe (straight arrow) with enlargement of a subcarinal lymph node (curved arrow). (b) Corresponding fused FDG PET-CT image shows intense hypermetabolism in the mass (straight arrow) and the metastatic node (curved arrow).