Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate a pigtail catheter in the left chest . The pigtail is not fully deployed . A moderate left apical pneumothorax has not changed in size since the preceding study 2 hours ago . It still measures 2 .5 cm in greatest width . There is no consolidation effusion or pneumothorax . Cardiac and mediastinal contours are normal .
    OUTPUT:
    
Unchanged appearance of a left apical pneumothorax despite chest tube placement . Consider placing the patient in the right lateral decubitus position to shift of the pleural air closer to the tube .