Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to prior , there has been continued interval improvement of the right upper lung opacity . Vague left mid lung opacity is unchanged as well as retrocardiac opacity which may be the sequela of previously drained left hydro pneumothorax . Small persistent left - sided pleural effusion again noted . There is no pneumothorax . The lungs are otherwise clear . The cardiomediastinal silhouette is stable . Old healed left lateral rib fractures noted . Right PICC tip is seen in the lower SVC .
    OUTPUT:
    
Continued interval improvement of the right parenchymal opacities . No other change .