Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Vascular stents are noted in the left and right brachiocephalic vein . Calcifications in the left upper quadrant correspond with the spleen . Cardiomegaly is stable with interval increase in bilateral ground - glass opacity consistent with pulmonary edema . Subtle nodularity in the right lower lung raises potential concern for a superimposed pneumonia . No large effusion or pneumothorax is seen . The mediastinal contour is stable . Mild hilar engorgement is noted . Hyperdense appearance of the osseous structures are is consistent with renal osteodystrophy . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Cardiomegaly , mild edema , with possible superimposed pneumonia .