Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral images of the chest . A right - sided central line terminates in the low SVC . The lungs are well expanded . There is mild pulmonary vascular prominence , which has progressed over the last several exams . The lungs are otherwise clear . There is no pleural effusion or pneumothorax . Moderate to severe cardiomegaly is again noted .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Mild pulmonary vascular prominence , which has progressed over the last several exams , raising the possibility of slowly progressive heart failure .