Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Indistinctness of the pulmonary vasculature and increased interstitial markings are consistent with mild vascular congestion . The heart remains stably enlarged . Patient is status post median sternotomy , CABG , and left - sided AICD placement , with leads terminating in the right atrium and right ventricle . External pacer pads are present . No pneumothorax or pleural effusion .
    OUTPUT:
    
Mild vascular congestion . .