Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest PA and lateral radiograph demonstrates unremarkable cardiomediastinal and hilar contours . There are reticulonodular opacifications in the bilateral lung bases with an increased opacification in the right upper lung . Findings are concerning for a multifocal pneumonia or possibly an atypical infectious process . No pleural effusion or pneumothorax evident . No osseous abnormality is evident .
    OUTPUT:
    
Right upper lobe and bibasilar opacification as described above , likely representing a multifocal infectious process , possibly atypical .