Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable chest radiograph provided . Port - A - Cath tip again projects over the right chest wall with its tip residing in the low SVC . There is complete opacification of the right hemithorax which is concerning for a large right pleural effusion with right lung collapse . There is no shift of midline structures . The left lung is mostly clear , though may be mild atelectasis at the left lung base . Heart size and cardiomediastinal silhouette can not be assessed . Bony structures appear intact .
    OUTPUT:
    
Complete right hemithorax opacification is concerning for large right pleural effusion and lung collapse .