Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is enlarged and the aorta is tortuous and calcified as before . Lung volumes are low which accentuates bronchovascular markings . There is pulmonary vascular congestion with mild pulmonary edema . Bibasilar opacities are most consistent with bibasilar atelectasis and small bilateral effusions however underlying infection should be considered in the appropriate setting . A right humeral prosthesis is demonstrated . A large hiatal hernia projects over the heart unchanged from the prior .
    OUTPUT:
    
Low lung volumes with pulmonary vascular congestion and mild edema . Bibasilar opacities likely reflect atelectasis and small effusions however underlying infection should be considered in the appropriate setting .