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Figure 22: (a) Axial CT scan shows basal fi brotic changes (curved arrows) and a welldefined mass in the anterior aspect of the left upper lobe (straight arrow). (b) FDG-PET image shows high uptake in the lesion in the left upper lobe (straight arrow), indicative of malignancy. There is also high uptake in left hilar lymph node (curved arrow), indicative of metastasis. (c) Fused PET-CT image shows high uptake in the tumor and left hilar lymph node. (d) Fused PET-CT image shows high uptake in the lymph node. The tumor was biopsy proven to be moderately differentiated adenocarcinoma

Figure 22: (a) Axial CT scan shows basal fi brotic changes (curved arrows) and a welldefined mass in the anterior aspect of the left upper lobe (straight arrow). (b) FDG-PET image shows high uptake in the lesion in the left upper lobe (straight arrow), indicative of malignancy. There is also high uptake in left hilar lymph node (curved arrow), indicative of metastasis. (c) Fused PET-CT image shows high uptake in the tumor and left hilar lymph node. (d) Fused PET-CT image shows high uptake in the lymph node. The tumor was biopsy proven to be moderately differentiated adenocarcinoma