Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to prior there has been no significant interval change . There is probable small residual right - sided pleural effusion . On the lateral view there is persistent opacity posteriorly , also unchanged . Superiorly the lungs are clear without consolidation or evidence of pulmonary edema . The cardiac silhouette is enlarged , stable in configuration . Aortic valve replacement and median sternotomy wires are noted . No acute osseous abnormalities
    OUTPUT:
    
No significant interval change since prior . Persistent small right pleural effusion and hazy opacity projecting posteriorly on the lateral view potentially atelectasis although infection is not excluded . Cardiomegaly appear