welcome to Health care magic. 1.Yes, treated PTB can show the evidence of old treated pulmonary tuberculoses ( PTB). 2.Unfortunately the signs on the x-ray remains for quite a longer time up to 10 years and on. It can not be treated or removed completely. 3.Only thing you can do is get a sputum examination and HRCT(high resolution computer tomography) and get a authorised report from radiologist as a proof there is no active process. 4.Scar itself means its treated. 5.You need to consult the organisation doctor and ask for the valid report to prove. Hope it helps you. Wish you a good health. Anything to ask ? do not hesitate. Thank you.