Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval improvement of prior pulmonary edema , though some vascular congestion persists . No confluent consolidation is identified . There is no pneumothorax . Mediastinal and hilar contours are within normal limits . Moderate cardiomegaly is unchanged .
    OUTPUT:
    
1 . Decreased pulmonary edema , though with persistent vascular congestion . 2 . Unchanged moderate cardiomegaly .