Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath terminates in the low SVC without evidence of pneumothorax . Quite upper lobe opacity has improved in the interval , however , with some residual remaining . Left mid lung atelectasis / scarring is re - demonstrated . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . Thoracolumbar scoliosis is noted .
    OUTPUT:
    
Interval decrease in extent of right upper lobe opacity , but was some residual remaining .