Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heterogeneous and calcified right lower lung opacity is chronic and corresponds to a pleural based mass , dating back to the chest CT from ___ . The remainder of the lungs are clear . There is no pulmonary edema . No pleural effusion or pneumothorax . A tracheostomy tube is in place .
    OUTPUT:
    
No evidence of pneumonia . Chronic calcified heterogeneous right lower lobe mass .