Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single - lead pacemaker device appears unchanged with its lead again terminating in the right ventricle . The lung volumes are low . The cardiac , mediastinal and hilar contours appear stable including cardiomegaly . Small pleural effusions are again suspected , but if anything , perhaps decreased . Fissures remain mildly thickened , but less so . Pulmonary vasculature is prominent and hazy again suggesting mild vascular congestion .
    OUTPUT:
    
Findings suggesting mild vascular congestion .