Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are again noted to be hyperinflated , with flattening of the hemidiaphragms . Bilateral pleural effusions are similar to perhaps slightly increased compared with prior . There is new silhouetting of the right heart border likely reflecting right middle lobar atelectasis . The pulmonary vasculature is normal in appearance . There is mild interstitial thickening consistent with mild pulmonary edema . The cardiac silhouette is normal in size , there is bilateral paratracheal lymphadenopathy , and there is calcification of the aortic knob . A right chest pacemaker is in place , with atrial and ventricular leads in stable and appropriate position . Asymmetry of the breasts is consistent with prior surgery . Poor definition of the lumens of lower trachea and main bronchi suggests airway compromise requiring CT for imaging evaluation .
    OUTPUT:
    
1 . Right middle lobe collapse . CT would be required to evaluate airway patency . 2 . Mild CHF , with interstitial fluid and slight increase in bilateral pleural effusions . 3 . Stable bilateral paratracheal lymphadenopathy .