Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is normal . The hila and pleura are unremarkable . There is ___ appearance of opacification of the right lower lobe with a reticular appearance that most likely represents vascular crowding secondary to low lung volumes , however in the appropriate clinical setting could represent a superimposed pneumonia . There is no pleural effusions or pulmonary edema .
    OUTPUT:
    
Right lower lobe opacification with reticular appearance that most likely represents vascular crowding secondary to low lung volumes versus a superimposed pneumonia in the appropriate clinical setting .