Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomegaly remains unchanged . A dual - lead left - sided pacemaker is in adequate position with leads terminating in the right atrium and right ventricle . Increased pulmonary vascular congestion persists with increased right basal opacity . There is no definite pneumothorax or pleural effusions .
    OUTPUT:
    
Persistent increased vascular congestion and increased right basal opacity . These findings are likely related to increased pulmonary venous pressure . However , in the appropriate clinical setting , right basal opacity could also represent early developing pneumonia .