Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left PICC ends in the low SVC , as before . There is redemonstration of midline sternotomy wires . There is evidence of a " deep sulcus sign " on the right with hyperlucency outlining the lateral aspect of the right hemidiaphragm , new compared to the prior study from ___ , concerning for a right pneumothorax . There has been a marked improvement in the degree of pulmonary edema seen on the prior study from ___ , now with only residual vascular congestion . Mild enlargement of the cardiac silhouette is not significantly changed . A small left pleural effusion is not excluded .
    OUTPUT:
    
1 . Findings suspicious for a right pneumothorax . Further evaluation could be performed with a well - positioned upright radiograph . 2 . Marked improvement in previously seen pulmonary edema with only residual pulmonary vascular congestion on the present study . 3 . Possible small left pleural effusion . Pertinent findings were discussed with Dr . ___ by Dr . ___ at 5 :34 p .m . via telephone on the day of the study .