Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffuse increase in interstitial markings bilaterally is similar to prior consistent with mild interstitial edema with pulmonary vascular congestion . No large pleural effusion is seen . There is no pneumothorax . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Persistent diffuse increase in interstitial markings bilaterally consistent with mild interstitial edema versus less likely chronic lung disease .