Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is enlarged . A pacemaker is in place , with the leads terminating in the regions of the right ventricle and right atrium . In comparison to the prior examinations , pulmonary edema is significantly improved . There is no pleural effusion or pneumothorax . No definite focal consolidation is identified .
    OUTPUT:
    
Cardiomegaly without definite edema .