Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Trace vascular redistribution in the upper lobes and minimal interstitial edema . Slight increase in small left and tiny right pleural effusions . Increased left basilar atelectasis . Mediastinal and cardiac contours are stable . Midline sternotomy wires are intact and biventricular pacer is unchanged .
    OUTPUT:
    
Minimal interstitial edema with assoicated slight increase in small bilateral pleural effusions .