Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . Mild hyperexpansion suggests COPD . A calcified left hilar lymph node is unchanged from the prior study from ___ . A medial left lower lobe pulmonary nodule is better evaluated by same day CT . A biliary drain projects in the expected location of the common bile duct . There is no free intra-abdominal air .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . No evidence of pneumoperitoneum . 3 . Hyperexpansion suggesting COPD . 4 . Medial left lower lobe pulmonary nodule is better evaluated by recent chest CTA , please see chest CTA report for recommendations .