Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac silhouette is mild to moderately enlarged . The aorta is tortuous . No pulmonary edema is seen . Some degenerative changes are seen along the spine .
    OUTPUT:
    
Cardiomegaly . No pulmonary edema .