Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains normal . Mild atherosclerotic calcification is noted within a mildly tortuous aorta . The mediastinal and hilar contours remain unchanged . Pulmonary vasculature is not engorged . Left upper lobe consolidative opacity with convex outward borders remains unchanged from prior . No new focal consolidation , pleural effusion or pneumothorax is identified . Moderate degenerative changes of both glenohumeral joints are again noted as well as within the thoracic spine .
    OUTPUT:
    
No substantial interval change in left upper lobe consolidative opacity which may reflect pneumonia but malignancy is not excluded . Follow up radiographs in 2 months is recommended after treatment to ensure resolution of this finding , as was previously recommended .