Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A cluster of calcifications in the right lung apex posteriorly appear similar to the prior chest radiograph . Lungs are otherwise grossly clear , and there are no pleural effusions , or pneumothoraces . Heart size is normal , and the aorta is tortuous . Small - to - moderate hiatal hernia is again demonstrated .
    OUTPUT:
    
Stable CT appearance of clustered calcifications at the right apex which have been present since a CT neck of ___ and are likely the sequela of a previous infectious or inflammatory process in this region .