Hello can i ask doc., last 2010 i undergo medication for 6 months because the finding of the doctor i got PTB minimal thats why im taken for 6months medication., and today i have a result of xray spot film that the findings is confirms the presence of the fibrotic and hazed infiltrates in the right upper lung and the impression is KOCH's INFECTION, RIGHT UPPER LUNG., the question it is possible that i have PTB again because the doctors said its never back again as long i complete my medication and i completed last 2010,? thank you