Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A chest tube projects in apical hemithorax . Very tiny line less than 4 mm is seen on the axillary portion of right lung that could represent a very small stable pneumothorax or sparing of subpleural lung . Bilateral opacities , most predominant in the right lung are unchanged . The mediastinal and cardiac contours are stable . There is no significant pleural effusion . Right subcutaneous air is unchanged .
    OUTPUT:
    
Patient with recent biopsy for bilateral lung opacities . Minimal stable right pneumothorax versus spared lung .