Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Dual lead left - sided pacemaker is unchanged in position . The cardiac and mediastinal silhouettes are stable with the cardiac silhouette enlarged and the aortic calcified and tortuous . There are bilateral perihilar airspace opacities , right greater than left , which may be due to asymmetric pulmonary edema and / or infection . Aspiration or pulmonary hemorrhage are felt less likely . Slight blunting of the left costophrenic angle may be due to atelectasis or trace pleural effusion . There is no pneumothorax . The patient is status post median sternotomy .
    OUTPUT:
    
Right greater than left perihilar opacities , right significantly more than left , may be due to asymmetric pulmonary edema and / or infection . Recommend follow up chest radiograph after diuresis if diuresis clinically appropriate . Possible trace left pleural effusion .