tuberculosis will have symptoms like cough greater than 2 wks , breathing difficulty and weight loss and loss of appetite... if your daughter don t have these symptoms don t need to worry... further thing you have to do is test for sputum AFB or go for gene expert it may detect MTB but sputum should be qualitative .. you didn t mention which lobe is involved based on that bronchoscopy will be much effective in detecting MTB ... even if we didn t find anything with these examination based on clinical experience we can start anti tubercular therapy... it may not be tuberculosis also we have to work out with sputum bacterial culture and start antibiotics for 2 wks and look for response.. contact nearest pulmonologist to sorry our this issue