Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . A small opacity obscuring the heart border at the level of the apex is compatible with a prominent epicardial fat pad . A tiny focus of linear atelectasis is seen at the lung bases . No focal parenchymal opacities are seen . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Unremarkable chest radiographic examination .