Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Overlying soft tissue limits assessment . There is mild cardiomegaly . The mediastinal and hilar contours are unremarkable . There is no pneumothorax or large pleural effusion . There may be a small left pleural effusion . The lungs are well - expanded . Mild increased patchy opacity at the right lung base , new since the prior study may reflect early aspiration or pneumonia .
    OUTPUT:
    
Mild increased patchy opacity at the right lung base , which may reflect aspiration or pneumonia in the correct clinical setting .