Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Midline sternotomy wires are again noted . Patient is rotated somewhat limiting the evaluation of the cardiomediastinal silhouette , though cardiomediastinal silhouette appears grossly stable . There are small layering bilateral effusions with mild interstitial edema . Overall , there has been no significant change from prior study . Bony structures are intact .
    OUTPUT:
    
Mild interstitial edema , stable cardiomegaly with small bilateral effusions .