Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are very low , limiting assessment for pulmonary edema . The right hemidiaphragm is elevated , resulting in increased vascular crowding . The chin and of overlying soft tissues obscure the lung apices . The heart and mediastinum are magnified by the projection .
    OUTPUT:
    
Assessment for pulmonary edema limited by very low lung volumes .