Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Mediastinal contours are stable . The cardiac silhouette is stable . There may be minimal left base atelectasis . No focal consolidation is seen . On the lateral view projecting over the lower hemithorax , there is a 2 .0 x 1 .6 cm rounded opacity , not well appreciated on the frontal view and appears new since ___ There is no large pleural effusion or pneumothorax . No pulmonary edema is seen .
    OUTPUT:
    
2 .0 cm rounded opacity projecting over the lower mid chest seen on the lateral view , not well seen on the frontal view , for which further evaluation with chest CT is recommended .