Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Midline sternotomy wires and mediastinal clips are noted . There are low lung volumes . Blunting of the right CP angle may reflect pleural thickening versus tiny effusion . Mild hilar engorgement is noted without frank pulmonary edema . Mild left basilar linear platelike atelectasis noted . No signs of pneumonia . Heart size is top - normal . No pneumothorax . High riding right humeral head suggestive of chronic rotator cuff disease . No acute bony abnormalities are detected .
    OUTPUT:
    
Mild central venous congestion without frank pulmonary edema . Top normal heart size . Low lung volumes limits evaluation .