Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP chest radiograph was obtained . Medial bilateral lung base opacities may be due to aspiration , although underlying infection not excluded . There is a possible calcified right diaphragmatic plaque . The bilateral costophrenic angles are blunted . There is no pneumothorax . Cardiomegaly is moderate . Multiple old right sided rib fractures are seen .
    OUTPUT:
    
1 . Medial bilateral lung base opacities may be due to aspiration , although underlying infection not excluded . 2 . Questionable trace pleural effusions may be further evaluated with a lateral view .