Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a heart which is normal in size and well aerated lungs which are clear . A small opacity lying anterior to the heart on lateral view probably corresponds with slight opacity at the apex on frontal view , likely representing a prominent fat pad . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of active or latent tuberculosis .