Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval resolution of the small left apical pneumothorax and the left - sided pneumomediastinum . The small amount of subcutaneous air underlying the left - sided surgical ___ has also resolved . There is mild linear atelectasis at the left lung base . There is no focal consolidation , pleural effusion , or pulmonary edema . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
1 . Interval resolution of left apical pneumothorax and pneumomediastinum . 2 . No evidence of acute cardiopulmonary process .