Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided consolidation involving the left upper lobes and possibly portions of the lingula and left lower lobe is seen . There is a trace left pleural effusion . Subtle opacity at the right lung base of is more likely due to atelectasis bone additional site of infection is not excluded . Prominence of the right hilum is stable . The cardiac and mediastinal silhouettes are stable . No pneumothorax is seen .
    OUTPUT:
    
Large area of consolidation involving the left lung , worrisome for pneumonia . Recommend followup to resolution . Possible trace left pleural effusion . Right base opacity may be due to atelectasis , of additional site infection is not excluded in the appropriate clinical setting .