Old TB scars versus Chronic Hypersensitivity Pneumonitis
I hope folks are having a good day. I was wondering if anyone had a similar experience to what I’m currently navigating in terms of the diagnosis journey. They found upper lobe predominant fibrosis on two x-rays, and am now being scheduled for a CT scan and various other tests to confirm and look deeper. My Pulmonary Function tests were reasonably good, mostly in the 90%s and my oxygen seems to be fine most of the time. The pulmonologist has said that the scarring they see in my lungs is most likely either from old TB (I once tested positive and was treated with antibiotics, although I never knowingly had active TB) or it is from chronic hypersensitivity pneumonitis (CHP), possibly caused by hay (I’m a horserider) or by mold (I have water damage in basement). I don’t know how they will tell the difference, but I assume there will be some signs on the CT to distinguish which it might be (??). The pulmonologist suggests that old TB scarring tends to be stable, and he didn’t seem to think that was anything to worry about and suggested that any shortness of breath may not even be related; however, CHP with fibrosis can behave more progressively, and as I understand it, is more akin to IPF at least in some cases.
Has anyone had a similar diagnostic journey? Not sure what to expect. Maybe everything will be perfectly fine if old TB scars? I know my symptoms are very mild compared to other people (harder to walk up stairs and hills, and less stamina than I used to have, occasional tickly cough, but otherwise pretty well).
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