Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are low . There is elevation of the right hemidiaphragm . Mild hilar congestion without frank pulmonary edema noted . There is splaying of the carina which likely reflects left atrial enlargement . No large effusion or pneumothorax . No convincing evidence for pneumonia . Left humeral head replacement noted . No acute bony abnormalities .
    OUTPUT:
    
Mild hilar congestion without frank pulmonary edema .