Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Prior median sternotomy and MVR . Right - sided PICC in the upper atrium . Moderate left pleural effusion has minimally increased . Very small right - sided pleural effusion . Increasing mild pulmonary edema . Significant retrocardiac opacity has not changed . Minimal right basilar opacity also unchanged .
    OUTPUT:
    
Moderate left and very small right pleural effusion have slightly increased and increasing mild pulmonary edema .