Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates a streaky opacity within the right middle lobe , possibly reflective of aspiration or alternatively atelectasis . Cardiomediastinal and hilar contours are within normal limits . There is no pleural effusion or pneumothorax . Visualized osseous structures demonstrates no acute abnormality .
    OUTPUT:
    
Streaky opacity within the right middle lobe may reflect aspiration or alternatively atelectasis .