Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes . Heterogeneous left lung base opacity projects over the spine on the lateral view . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . Mild perihilar vascular congestion is noted . There is no pleural effusion . Kerly B lines in the right lung base are are new since prior . There is no pleural effusion or pneumothorax . Right PIC catheter tip projects over lower SVC . Spinal fixation hardware appears intact . Compression deformities of several vertebral bodies appear longstanding . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
1 . Heterogeneous left lung base opacity may represent atelectasis or infection in the appropriate clinical setting . 2 . Kerly B line in the right lung base are new , could be inflammatory or new lympangitic spread of tumor in this patient with history of malignancy . Pulmonary edema is unlikely .