Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate prominent cardiac silhouette , in keeping with high - output physiology related to chronic anemia . The mediastinal and hilar contours are unremarkable . Prominent perihilar vascular markings are redemonstrated . There is no frank edema . The lungs are clear . No pneumothorax or pleural effusion . Previously noted H - shaped vertebra is less conspicuous on current exam .
    OUTPUT:
    
1 . Stable mild cardiomegaly and increased vascularity in keeping with history of sickle cell disease . 2 . No definite acute cardiopulmonary process .