Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left chest wall diluted dual lead pacing device seen with right ventricular and right atrial leads . Increased interstitial markings are seen throughout the lungs . There are small bilateral pleural effusions , larger on the left . Retrocardiac opacity is noted medially . Cardiac silhouette is mildly enlarged . Mediastinal wires are noted and densities in the region of the mitral valve suggesting prior repair . No acute osseous abnormalities identified .
    OUTPUT:
    
Interstitial edema and small bilateral effusions . Left basilar opacity potentially atelectasis noting that infection is not excluded .