i have a friend, he is 46 years of age, 5'8" tall, at least weighing 70-80 kilos. during his adolescence age, he had undergone 6mos. treatment on tuberculosis,and said it was treated after. yet after several years,as he applied for a job,he was required for a chest x-ray test. he found out that he had this bilateral pulmonary hyper aeration. if I'm not mistaken, he was already in service for more than 15 years, and the same findings shown everytime he had this chest x-ray test yearly. he wanted to know what bilateral pulmonary hyper aeration means? what are the symptoms? How can this be treated?