Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size remains moderately enlarged , unchanged . Lungs are clear and the pulmonary vasculature is normal . The mediastinal and hilar contours are unremarkable . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Moderate cardiomegaly , unchanged , and compatible with the patient 's history of ASD and Ebstein 's anomaly .