Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right internal jugular central venous catheter ends in the mid SVC . A 2 .8 cm rectangular opacity overlying the eighth rib posteriorly on the right adjacent to an EKG lead is external to the patient . Bibasilar opacities are improved compared to prior study of ___ . Minimal blunting of the right costophrenic angle likely reflects a small pleural effusion , unchanged from prior . There is no evidence of pneumothorax . The heart is normal in size and the cardiomediastinal silhouette are unremarkable .
    OUTPUT:
    
1 . Right internal jugular central venous catheter in expected position with no evidence of pneumothorax . 2 . Stable small right pleural effusion