Changes in perifollicular vascularity after administration of human chorionic gonadotropin measured by quantitative three-dimensional power Doppler ultrasound.

Aim: To determine the perifollicular vascular network and blood flow changes of the dominant preovulatory follicle using quantitative three-dimensional (3D) power Doppler analysis.

Methods: A total of 21 cycles were studied in spontaneously ovulating women who underwent folliculometry and 3D power Doppler angiography of perifollicular blood flow of the dominant preovulatory follicle on the day of human chorionic gonadotropin (hCG) administration and 24 h after it.

Results: At 24 h after the administration of hCG, increases were found in the area inside the biggest follicular circumference (8.

A large hymenal polyp in a 21-year-old virgin.

Pathological conditions of the hymen are rare in everyday medical practice. They are usually encountered in the pediatric patient population and are sometimes a matter of forensic interest. We report an interesting case of a large hymenal polyp in an adolescent virgin that presented only a cosmetic problem.