My Son Diagnosed With TB And Is Already Finished Medication

my son diagnosed with TB and is already finished medication last April 4,2016 he was taking medication for almost a year and also requested to take the vaccine by his attending pulmonary infectious expert and this june 2016 as required by the employer he was requested to undergo another chest examination and the result reads this way ; suspicious upper lobe opacities are seen ,heart is not enlarged,Hemidiaphragms are intact APICOLORDOTIC VIEWS is suggested...and fibroid infiltrates noted over left apex , minimal kock's infection left apex ...as a mother I was very much worried and feel sorry for my son who is willing to have his work and the only reason that makes him frustrated cause of his disease the so called Tuberculosis ? please i just want to learn from another expertise in this illness kindly give me complete answer with my query that it matter most and thank you