The accumulation of immunoglobulins in the human tonsil.

The concentration of 5 types of immunoglobulins in both serum and the faucial tonsil was determined. The level for all types was significantly higher in the tonsil. IgG was detected as the main immunoglobulin in the tonsil, while the concentration of the other types was in about the same range. With the shortening of the biological half-live the accumulation index increases. The results give evidence for the antibody formation in the tonsil.