Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . There is linear density at the right lung base likely representing subsegmental atelectasis or scarring . There is no focal consolidation to raise concern for pneumonia . No effusion or pneumothorax is seen . The heart size appears grossly stable . Mediastinal contour is unremarkable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No convincing signs of pneumonia .