Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes , which accentuate the bronchovascular markings . Given this , subtle lateral left base opacity is seen which may be due to atelectasis , underlying consolidation is difficult to exclude . No focal consolidation is seen on the right . No large pleural effusion is seen . There is no pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . There may be minimal pulmonary vascular congestion , likely accentuated by low lung volumes . An ovoid radiopaque structure is seen overlying the epigastric region , to the left of midline , not seen on the lateral view , and may be external to the patient .
    OUTPUT:
    
Low lung volumes , which accentuate the bronchovascular markings . Subtle lateral left base opacity may be due to atelectasis although a focal consolidation is not excluded in the appropriate clinical setting .