Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . As on chest CT performed earlier today at an outside hospital , there is complete opacification of the right hemi thorax which is consistent with right pleural effusion , right lung atelectasis with large mass in the right upper lobe . No significant shift of midline structures . The left lung is grossly clear . Cardiomediastinal silhouette can not be assessed . Bony structures appear grossly intact .
    OUTPUT:
    
Right hemithorax opacification consistent with effusion , atelectasis and right upper lobe mass as seen on CT chest from earlier today .