Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable view of the chest demonstrates left PIC catheter tip projecting over distal SVC . Linear opacities in the right lung base likely represent atelectasis . Small right pleural effusion can not be excluded . The left lung appears well aerated without pleural effusion or pneumothorax . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is no pulmonary edema .
    OUTPUT:
    
Low lung volumes with right lung base atelectasis .