there is a persistent bilateral interstitial and airspace process throughout the lungs but with relative sparing of the apices. when compared to the most recent comparison of <unk>, there is overall improved aeration suggesting that the superimposed edema is resolving. however, when compared to <unk>, there is still likely mild pulmonary edema superimposed on the known interstitial lung disease. overall cardiac and mediastinal contours are stable. no pneumothorax or large effusions. there is a left humeral prosthesis rounded calcific opacities overlying the right scapula likely represent loose bodies.