I have had a bought of bronchitis for the first time in about 10 years. I have been a mild smoker. An xray revealed that my lungs appear to be over expanded consistent with CAL. The doctor says I have emphysema however was very vague about the prognosis and consequences, he said I may have lost 20 - 40 % of my lung capacity.
I recently quit,and if you quit smoking it wont get worse knock on wood i do know it does reverse itself,and in time your lung function will get better and the unaffected areas will be maximized, and follow the doctors advice and treatments.