Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The mediastinal silhouette is normal and unchanged since prior study . The cardiac silhouette is mildly enlarged but unchanged . A calcified tortuous aorta is again noted . A tiny nodular density is seen in the right upper lung which was n't present on prior imaging . While this may be a confluence of structures , it is not fully evaluated with this study . There is no pneumothorax or pleural effusion . There is mild bibasilar atelectasis .
    OUTPUT:
    
No acute cardiopulmonary process . Nodular structure in right upper lung can be evaluated with oblique views or a non-emergent chest CT .