<s>[INST] It says on the chest X-ray that there is a linear density seen in the right mid lungfield which may represent a prominent vessel or fibrosis. I had an xray last year but there was no findings like this. However, I had a tuberculosis or Primary complex when I was a child.. Would that possibly affect the result? I m a little bit worried now.. Can u tell me what is prominent vessel and fibrosis or is t just the same? Thank you [/INST] Hello Thanks for writing to ChatDoctorLinear density in right mid-field of lung may be due to fibrosis or prominent blood vessel. Both conditions doesn't require any treatment. For confirmation, contrast CT scan of thorax should be done. Linear density is more in favor of fibrosis since you have history of tuberculosis. Fibrosis is a healed stage of infection and generally it doesn't require any intervention. Take Care Chat Doctor.  </s>