The reasons for prenatal HLA typing for potential cord blood stem cell
donor evaluation are reviewed and the strategies for doing so are sum
marized. Cultured fetal cells are class I HLA typed by modified serolo
gical techniques. When indicated, the fetal cells are also class II HL
A typed by one or another DNA typing method. The same procedures can b
e used for the prenatal identification of a potential donor for an aff
ected fetus.