Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . Multiple chain sutures are demonstrated within the left lower lobe . Increased nodular opacification is seen about the suture site as well as within the posterior aspect of the left lower lobe . The right lung appears clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Increased nodular opacities within the left lower lobe , particularly about the surgical site . These previously have been suggested to be rheumatoid nodules , but a followup nonemergent chest CT is suggested .