Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large spiculated mass is present in the right upper lobe . No pneumothorax or pleural effusion is present . Opacities in the right lower lobe are likely atelectasis . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits . Marked scoliosis is noted .
    OUTPUT:
    
No pneumothorax status post transbronchial biopsy of large spiculated right upper lobe mass .