Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and fairly well - aerated lungs . There are patchy bibasilar opacities . There is no pleural effusion or pneumothorax . There is no radiographic evidence for mass . Left clavicle fixation hardware is noted .
    OUTPUT:
    
Patchy bibasilar opacities could represent atelectasis , sequela of aspiration , or early developing pneumonia . Short - term follow - up chest radiographs are recommended .