Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Mild left basilar atelectasis is seen without definite focal consolidation . No pleural effusion or pneumothorax is seen . The lungs remain hyperinflated with flattening of the diaphragms , consistent with chronic obstructive pulmonary disease . The cardiac and mediastinal silhouettes are unremarkable . Hilar contours are stable .
    OUTPUT:
    
No acute cardiopulmonary process .