Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low accentuating the cardiac silhouette and pulmonary vasculature . Heart size is mildly enlarged with unfolding of the thoracic aortic arch . Hilar contours are unremarkable . There is a left lower lobe consolidation with suggestion of subtle air bronchograms . More hazy opacities in the right lower lobe are likely atelectatic . The lung apices are clear . Pleural surfaces are clear without effusion or pneumothorax .
    OUTPUT:
    
Retrocardiac consolidation with possible air bronchograms which may reflect pneumonia in the appropriate clinical circumstance .