PURPOSE: Retrospective reviews suggest that the functional outcomes of surgery of the urogenital sinus have often been unsatisfactory and to our knowledge the long-term results of newer surgical techniques have yet to be evaluated. A precise understanding of pelvic fetal neuroanatomy is germane for optimizing surgical correction of the urogenital sinus. MATERIALS AND METHODS: The pelves of 10 human female fetuses were serially sectioned. Masson's trichrome staining and immunochemistry for the neuronal marker S100 (Dako Corp., Carpinteria, California) along with anatomical computer reconstruction allowed 3-dimensional analysis of the nerves in relation to the pelvic structures as an animated motion picture. RESULTS: Two types of neuronal structures were identified. 1) A dense perivisceral foil of branching nerves closely surrounded the pelvic organs. The localization of most nerves was on the external faces of the viscera with a limited fraction in the rectovaginal and urethrovaginal septa. This innervation was from the anterior cephalad periurethral area to the posterior caudal perirectal area. 2) A significant amount of nerves surrounded the cephalad urethra on its anterior and posterior faces. CONCLUSIONS: Based on these anatomical data during surgical repair of a urogenital sinus we would advocate minimal mobilization of the lateral faces of the vagina, avoiding dissection of the proximal urethra above the pubic bone and electing a vaginal flap in severe cases.
PURPOSE: Retrospective reviews suggest that the functional outcomes of surgery of the urogenital sinus have often been unsatisfactory and to our knowledge the long-term results of newer surgical techniques have yet to be evaluated. A precise understanding of pelvic fetal neuroanatomy is germane for optimizing surgical correction of the urogenital sinus. MATERIALS AND METHODS: The pelves of 10 human female fetuses were serially sectioned. Masson's trichrome staining and immunochemistry for the neuronal marker S100 (Dako Corp., Carpinteria, California) along with anatomical computer reconstruction allowed 3-dimensional analysis of the nerves in relation to the pelvic structures as an animated motion picture. RESULTS: Two types of neuronal structures were identified. 1) A dense perivisceral foil of branching nerves closely surrounded the pelvic organs. The localization of most nerves was on the external faces of the viscera with a limited fraction in the rectovaginal and urethrovaginal septa. This innervation was from the anterior cephalad periurethral area to the posterior caudal perirectal area. 2) A significant amount of nerves surrounded the cephalad urethra on its anterior and posterior faces. CONCLUSIONS: Based on these anatomical data during surgical repair of a urogenital sinus we would advocate minimal mobilization of the lateral faces of the vagina, avoiding dissection of the proximal urethra above the pubic bone and electing a vaginal flap in severe cases.
Authors: Phyllis W Speiser; Wiebke Arlt; Richard J Auchus; Laurence S Baskin; Gerard S Conway; Deborah P Merke; Heino F L Meyer-Bahlburg; Walter L Miller; M Hassan Murad; Sharon E Oberfield; Perrin C White Journal: J Clin Endocrinol Metab Date: 2018-11-01 Impact factor: 5.958
Authors: Avi Baskin; Amy B Wisniewski; Christopher E Aston; Paul Austin; Yee-Ming Chan; Earl Y Cheng; David A Diamond; Allyson Fried; Thomas Kolon; Yegappan Lakshmanan; Pierre Williot; Sabrina Meyer; Theresa Meyer; Bradley Kropp; Natalie Nokoff; Blake Palmer; Alethea Paradis; Dix Poppas; Brian VanderBrink; Kristy J Scott Reyes; Amy Tishelman; Cortney Wolfe-Christensen; Elizabeth Yerkes; Larry L Mullins; Laurence Baskin Journal: J Pediatr Urol Date: 2020-06-01 Impact factor: 1.921