Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable view of the chest was obtained . There are slightly low lung volumes , accentuate the bronchovascular markings . Patchy right lung base opacity may represent confluence of overlapping structures , although underlying consolidation can not be excluded in the appropriate clinical setting and could be better evaluated with dedicated PA and lateral views . The left lung is clear . No large pleural effusion or pneumothorax . The cardiac silhouette is top normal to mildly enlarged . The aorta remains tortuous .
    OUTPUT:
    
Low lung volumes . Patchy right base opacity may represent overlapping structures , although underlying consolidation can not be excluded in the appropriate clinical setting . Dedicated PA and lateral views would better evaluate .