Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly is stable with elongation of the thoracic aorta . There is central vascular congestion with few scattered ___ B - lines and upper zone redistribution , consistent with mild interstitial pulmonary edema . There is no focal consolidation , effusion or pneumothorax . Mediastinal and hilar contours are stable . Compression deformities of the thoracic spine are stable .
    OUTPUT:
    
Stable severe cardiomegaly with mild interstitial pulmonary edema .