Figure 3. The features of PET-CT corresponding to the patient. (A-B)A 73.2*52.0mm cystic solid mass was screened in the oblique fissure of the lower lobe of the right lung. The boundary is clear. The average CT value is about 28.2 HU. The margin is accompanied by abnormal increase in glucose metabolism. The maximum SUV value is about 3.2.(C-D) A 79.8*65.0mm cystic solid mass was screened in the oblique fissure of the lower lobe of the right lung. The boundary is clear. The average CT value is about 24.8HU. The margin is accompanied by abnormal increase in glucose metabolism. The maximum SUV value is about 3.2.