Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no evidence of pneumonia , pneumothorax , or pleural effusion . Moderate to severe cardiomegaly is stable . Mitral annulus calcifications are noted . Calcifications also noted of the aortic knob .
    OUTPUT:
    
Moderate to severe cardiomegaly without pulmonary edema or pneumonia .