Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild hyper expansion . The lungs are clear of airspace or interstitial opacity . Slight asymmetric indentation of the right lower trachea unchanged is ___ , can be related to thyroid enlargement . The cardiomediastinal silhouette is unremarkable . No pleural effusions or pneumothorax . No acute or aggressive osseus changes .
    OUTPUT:
    
No acute radiographic intrathoracic pulmonary disease .