[Morphofunctional characterization of the lymphoid system in fetuses and newborns with 23-28 weeks of gestation after intrauterine infection].

Lymphoid organs (LO) of 75 foetuses and newborns (the 23-28th week of gestation) dying intranatally or within first 2 days of life were studied. Two types of lesions are found in the lymphoid organs after the intrauterine contamination: 1) immunogenesis activation in the form of hyperplastic changes in the lymphoid organs and IgM synthesis; 2) immunogenesis depression manifested mainly in the peripheral organs of immunogenesis (reduction of the lymphoid organs volume, lack of IgM synthesis).