Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post CABG with median sternotomy wires in place . Moderate cardiomegaly is unchanged . Triangular opacity in the superior segment of the left lower lobe is new since prior chest radiograph . Small left pleural effusion . No pleural effusion on the right . There is no focal consolidation . No pneumothorax . No central vascular congestion or overt pulmonary edema .
    OUTPUT:
    
1 . New triangular opacity in the superior segment of the left lower lobe , for which chest CT is recommended for further evaluation 2 . Small left pleural effusion . 3 . Stable moderate cardiomegaly .