Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate unchanged severe cardiomegaly and chronic vascular congestion . There is no appreciable change in the right pleural effusion . There is chronic pleural thickening at the site of prior rib fractures . The lungs are clear . There is no pneumothorax .
    OUTPUT:
    
Unchanged chest radiograph .