Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval insertion of a left - sided chest tube . New left pneumothorax is moderate with no evidence of tension . Left pleural effusion has decreased in size . Mild pulmonary edema and pulmonary venous congestion have improved slightly on the right . Severe cardiomegaly is unchanged . Mediastinal silhouette is unchanged .
    OUTPUT:
    
1 . Moderate size left pneumothorax after insertion of left - sided chest tube . 2 . Slight improvement of the right pulmonary edema and pulmonary venous congestion .