Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . A subtle opacity at the right medial lung base could represent pneumonia . Otherwise , the lungs are clear . No large effusions or pneumothorax . Anchors are noted at the right humeral head . A vascular stent is present in the upper abdomen .
    OUTPUT:
    
Subtle opacity in the right medial lung base could in the right clinical setting represent pneumonia .