An electron microscopic investigation on the pathogenesis of human vaginal trichomoniasis.

The fine structure of Trichomonas vaginalis and its acid phosphatase activity in the vaginal medium was investigated with the aid of the electron microscope. The relationship among trichomonads, desquamated epithelial cells, macrophages and bacteria was examined with special attention directed towards their phagocytic behavior. Acid phosphatase activity was observed in the Golgi apparatus, phagolysosomes and in the chromatic granules of Trichomonas vaginalis.