Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . There is a new mild interstitial abnormality suggesting vascular congestion in addition to existing pulmonary venous distension . Mild relative elevation of the right hemidiaphragm appears unchanged . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Findings suggesting increased vascular congestion .