[Labeling of testicular biopsies with lectins. Value of Evonymus europaeus agglutinin].

EEA was used to label testicular biopsies with 11 other lectins and three monoclonal antibodies anti blood group A, B, H substances. Although EEA's receptor chemical structure is still unknown and an electron microscopic control necessary, it is possible to use this lectin to label proacrosomic vesicles of spermatids in man and animal, allowing useful comparisons between species. The intensity of the reaction makes it interesting in the standard study, even automatized, of every testicular biopsy.