Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable with Moderate cardiomegaly . Pacer leads are in standard position with tip in the right atrium and right ventricle . Mild vascular congestion has minimally increased . There is no pneumothorax or pleural effusion . There are mild degenerative changes in the thoracic spine
    OUTPUT:
    
No evident pneumothorax . Mild vascular congestion has minimally increased .