Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided demonstrating midline sternotomy wires and mediastinal clips in unchanged position . Calcified nodules are again noted stable in appearance projecting over the right lung base and right pulmonary hilum . Retrocardiac density containing air - fluid level is compatible with a hiatal hernia . No definite signs of pneumonia , CHF . Heart is mildly enlarged , though this is stable . Bony structures are intact . Clips in the right upper quadrant noted .
    OUTPUT:
    
Mild cardiomegaly , hiatal hernia , stable calcified granulomas .