Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the most recent radiograph , left lower lobe opacity compatible with infection is grossly unchanged . There is minimal right basilar atelectasis . Lobulated contour abutting the aortic arch and projecting over the AP window is compatible with thoracic aortic aneurysm and prior dissection . Intact median sternotomy wires . No pneumothorax . Tiny , if any , right pleural effusion .
    OUTPUT:
    
Persistent left lower lobe consolidation , compatible with infection . Small right pleural effusion .