Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Increased interstitial markings compatible with interstitial edema is as on prior exam , not significantly changed given differences in technique . No large effusion is identified . Cardiac silhouette is enlarged but stable in configuration . Mitral annular calcifications are again noted . No acute osseous abnormality is detected .
    OUTPUT:
    
Interstitial edema , not significantly changed since prior .