Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is mild vascular congestion without frank pulmonary edema . Mediastinal contour , hila , and cardiac silhouette are stable from ___ . The aorta is tortuous . Elevation of the left hemidiaphragm is chronic .
    OUTPUT:
    
Mild vascular congestion without frank pulmonary edema .