The hazy densities is your description or the radiologist's? Normally the description is fluffy shadows or calcific lesions etc.
If you are asymptomatic
, the shadows are likely to be old. If you had Kochs in past, then it is explainable and you should not worry in that case, especially if the shadows have remained unchanged over period.
obesity or even a tuft of hair can cause a hazy shadow. If you have long
hair, I would suggest to tie them up neatly and repeat the X-ray.
TB however uncommonly may be there without symptoms
. If the shadows looks active (as per the radiologist's opinion), then get your sputum