Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and show a ___- mm left lower lobe opacity , which is new . The cardiomediastinal silhouette and hilar contours are normal . No pleural effusion or pneumothorax is present . A moderate hiatal hernia is unchanged .
    OUTPUT:
    
___- mm nodular opacity in the left lower lobe warrants further examination with shallow obliques with nipple markers to exclude metastatic disease .