Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker device is noted with single lead terminating in the right ventricle , unchanged . Massive cardiomegaly is similar compared to the prior exam . The aorta is diffusely calcified . Mediastinal contours are widened superiorly , unchanged , likely due to combination of mediastinal fat and vessels . There is new mild interstitial pulmonary edema with perihilar haziness . Blunting of the costophrenic angles bilaterally likely reflect the presence of trace bilateral pleural effusions . No pneumothorax is identified . Rightward deviation of the superior trachea at the thoracic inlet is unchanged , likely due to a combination of mediastinal fat and tortuous vessels . No acute osseous abnormality is detected .
    OUTPUT:
    
Mild interstitial pulmonary edema and trace bilateral pleural effusions .