Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is borderline enlarged . Mediastinal and hilar contours Conal limits . The pulmonary vasculature is not engorged . Minimal patchy opacity in the right lung base likely reflects an area of atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormalities seen . H - shaped vertebra is compatible with a history of sickle cell disease .
    OUTPUT:
    
Borderline cardiomegaly . Minimal patchy right basilar opacity , likely atelectasis .