Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to ___ chest radiograph , lung volumes are lower resulting in crowding of bronchovascular structures . Within this is relative limitation , note is made of apparent new bronchial wall thickening in the right perihilar and basilar region . This is accompanied by a subtle area of increased opacity overlying the mid thoracic spine on the lateral radiograph , likely in the superior segment right lower lobe
    OUTPUT:
    
Subtle right lower lobe abnormalities concerning for aspiration or an early focus of pneumonia . Short - term radiographs may be helpful in this regard .