Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates a normal cardiomediastinal silhouette , allowing for technique . The lungs are fairly well - aerated , with bilateral infrahilar opacities , which could represent multifocal pneumonia . The right infrahilar opacity is increased compared to the chest radiograph from earlier on the same day . There is no pleural effusion or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Increased bilateral infrahilar opacities , which again could represent multifocal pneumonia .