Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation is identified . There is mild interstitial edema , improved since ___ . The cardiomediastinal silhouette and hilar contours are stable . There is no pleural effusion or pneumothorax . A left upper extremity PICC terminates at the distal SVC .
    OUTPUT:
    
Mild pulmonary interstitial edema . No focal consolidation .