Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . Increased reticular markings bilaterally may relate to underlying fibrosis / scarring and mild vascular congestion . Heart size is normal . Mediastinal contours are normal . There is no pleural effusion or pneumothorax . There is no fracture .
    OUTPUT:
    
1 . Chronic lung changes , but no evidence of pneumonia . 2 . Mild vascular congestion .