Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is stably , mildly enlarged . There is bibasilar atelectasis . Pulmonary edema is overall stable since prior examination , but the other the signs of cardiac decompensation - pulmonary and mediastinal vascular engorgement - are improving . More confluent opacity is seen in the bilateral infrahilar regions , right greater than left . Though these may be related to the underlying pulmonary edema , infection is not excluded . There is no definite pleural effusion or pneumothorax .
    OUTPUT:
    
Despite persistent pulmonary edema , cardiac decompensation is improving . Appearance of the lung bases is suspicious for pneumonia .