Evaluation of the transplacental toxicity of diethylstilbestrol with the scanning electron microscope

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Abstract
Exposure in utero to the synthetic estrogen diethylstilbestrol (DES) is associated with reproductive tract lesions in male and female CD‐1 mice. The scanning electron microscope was used to evaluate the luminal surface of the vagina, cervix, and uterus following prenatal exposure to DES. Abnormalities that have been observed include urethral openings in the cervicovaginal area, squamous metaplasia of the uterus, glandular elements in the vagina, and abnormal cell surface features in the vaginal epithelium.