Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . Lung volumes are slightly low and there is atelectasis at the lung bases . There is no focal consolidation , pneumothorax or pleural effusion . Cardiomediastinal silhouette is unremarkable . Osseous structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . Atelectasis at the lung bases .