Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is mildly tortuous . Mediastinal and hilar contours are unremarkable . Apart from minimal atelectasis in the left lower lobe , the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No radiographic evidence for pneumonia .