Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is stably enlarged . Again noted is minimal indistinctness of the pulmonary vasculature . There is minimal peribronchial cuffing and thickening of septal lines , improved since the prior examination . There is no definite consolidation . Small fluid is noted in the fissures ; no pleural effusion or pneumothorax identified . Midline sternotomy wires are well aligned and intact . CABG clips are noted .
    OUTPUT:
    
Mild pulmonary edema , improved in comparison to recent study .