Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette stable . The left chest tube has been removed . Increased opacity at the left base may represent atelectasis . A small left pleural effusions unchanged . A very small left apical pneumothorax is unchanged .
    OUTPUT:
    
1 . Stable very small left apical pneumothorax . 2 . Increased left basilar atelectasis . Small left pleural effusion is unchanged .