Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiograph demonstrates hypoinflated lungs with crowding of vasculature and bilateral lower lobe atelectasis . Heterogeneous opacity within the right lower lobe is worrisome for pneumonia . Heart size is obscured due to patient positioning and low lung volumes . Mediastinal contour and hila are unremarkable . Limited assessment of the upper abdomen is within normal limits .
    OUTPUT:
    
Heterogeneous right lower lobe opacity is worrisome for pneumonia or aspiration pneumonia .