Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Midline sternotomy wires and prosthetic cardiac valve as well as mediastinal clips are noted . There are bilateral pleural effusions , right greater than left . There is mild interstitial edema . Heart size is top normal . The mediastinal contour appears grossly unremarkable . Bony structures are demineralized , though appear intact .
    OUTPUT:
    
Cardiomegaly with bilateral small pleural effusions and interstitial edema compatible with congestive heart failure .