Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest . The lungs are well expanded . There is a focal patchy opacity in the right infrahilar area , which could represent atelectasis , aspiration , or early pneumonia . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Focal opacity in the right infrahilar area , which could represent atelectasis , aspiration , or early pneumonia . Short term follow up radiographs are recommended .