Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate slightly low lung volumes , resulting in bronchovascular crowding . No opacity convincing for pneumonia is present . There is no pleural effusion or pneumothorax . Cardiomediastinal and hilar silhouettes are within normal limits . There is no air under the right hemidiaphragm .
    OUTPUT:
    
No evidence of pneumonia .