Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy , CABG , coronary artery stenting , and aortic valve repair heart size remains mildly enlarged . The mediastinal and hilar contours are unremarkable . Mild pulmonary vascular congestion has improved in the interval , with a small right pleural effusion , relatively unchanged . Nodular opacity measuring approximately 11 mm projecting over the right lower lobe is re - demonstrated . No new focal consolidation or pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Interval improvement in mild pulmonary vascular congestion , with unchanged small right pleural effusion . Re- demonstration of 11 mm nodule projecting over the right lower lobe , which again can be better assessed with chest CT .