• tissue
  • Immunoglobulin G4-related disease (IgG4-RD) is now a widely recognised multi-organ system disease characterised by elevated serum and tissue concentrations of IgG4. (bmj.com)
  • tests
  • Depending on what the ultrasound shows, you may be required to have one or two additional tests: a fine needle biopsy and a radionuclide thyroid scan. (liverdoctor.com)