Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no evidence of pneumothorax or displaced rib fractures . There is no pleural effusion . Right - sided Port - A - Cath is once again seen appropriately placed and terminating within the distal SVC . Lungs are well expanded and clear with a paucity of vascular markings in the upper field consistent with emphysema which is better demonstrated on previous CT study . Cardiomediastinal silhouette is within normal limits . Pleural surfaces are unremarkable .
    OUTPUT:
    
No evidence of pneumothorax or displaced rib fractures .