Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle right perihilar opacities are new . Lungs are otherwise clear . No pleural abnormalities . Moderate cardiomegaly without pulmonary vascular congestion or edema . Cardiomediastinal and hilar silhouettes are normal .
    OUTPUT:
    
Subtle right perihilar opacities likely reflect aspiration or atelectasis .