Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post left upper lobectomy with appropriate position of the left - sided chest tube . There is a small left apical pneumothorax . No appreciable pleural effusion . Expected volume loss and elevation of left hemidiaphragm . Cardiomediastinal silhouette is normal .
    OUTPUT:
    
Small left apical pneumothorax status post left upper lobe resection . Appropriate position of chest tube .