Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac and mediastinal contours appear unchanged including moderate tortuosity of the aorta . The heart is probably normal in size . Elevation of the right hemidiaphragm with substantial opacity involving the right hilum and nearby cardiophrenic sulcus appear similar compared to the recent prior examination . Regarding the lung parenchyma , no definite nodules are demonstrated radiographically .
    OUTPUT:
    
Similar medial right basilar opacity which is nonspecific but shows air bronchograms , perhaps associated with radiation fibrosis in the appropriate setting , although coinciding malignant mass in the area is not excluded .