Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated to the right . The patient 's chin overlies the right lung apex , making its evaluation suboptimal . There are low lung volumes , which accentuate the bronchovascular markings . Evidence of mild interstitial edema is seen . On the lateral view , there is patchy opacity projecting over posterior lung base , possibly on the right , consolidation at that location due to infection or aspiration not excluded . The cardiac silhouette is not enlarged . Prominence of the hila may relate to pulmonary vascular engorgement .
    OUTPUT:
    
Low lung volumes and evidence of interstitial edema . Focal patchy opacity projecting over posterior lung base , possibly on the right , may represent underlying consolidation possibly due to infection or aspiration , atelectasis , or artifact .