Читать книгу Ridley's The Vulva - Группа авторов - Страница 48

The ureteric bud arises from the Wolffian (mesonephric) duct and separates off when the duct is incorporated into the urogenital sinus to form the trigone of the bladder and urethra. Failure of dissociation between the ureteric bud and the Wolffian duct in the female will allow the ureteric orifice to be located at any site along the caudal remnant of the Wolffian duct (Gartner’s duct). Secondary rupture of Gartner’s duct into the vagina [68] allows for vaginal drainage of urine from the ectopic ureter. The most common site for the vaginal opening of an ectopic ureter is the vestibule and usually presents as continuous leakage but has also been mistaken for premature rupture of the membranes in a pregnant patient [69].