typing

Tissue typing is a set of tests that are done with your blood and saliva. You might have it if your doctors think that you need a stem cell or bone marrow transplant  from someone else (donor transplant). It is to show how closely a possible stem cell or bone marrow donor’s tissue matches your own. You might also hear this test called other names such as: HLA tissue typing HLA typing Histocompatibility testing HLA crossmatching You usually have one or more of the following tests: a blood test a swab taken from the inside of your cheek (buccal swab)