Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal upright view of the chest was obtained portably . Since 7 : 18 a .m . , there is no interval change in the right moderate pneumothorax and right basilar opacity in the partially collapsed lung with a pigtail catheter in the right lateral costophrenic sulcus . There is no evidence of tension . Cardiac and mediastinal silhouettes are stable . Blunting of the left costophrenic sulcus may represent a tiny effusion . No left pneumothorax .
    OUTPUT:
    
No change from 7 : 18 a .m . in right pneumothorax .