quotes from "Pediatric Colorectal Conundrums: Case Studies: From Fundamental to Advanced (Pediatric Colorectal Surgery)" by Marc Levitt, Thomas Xu, Hussein Wissanji -

"In addition, females with an ARM should have a gynecologic exam. This is often performed initially with a physical exam to confirm the presence of a vaginal opening. If the vaginal opening is absent, a pelvic US can be performed to assess intra-abdominal gynecologic structures and guide planning of reconstruction."

"At the time of anorectoplasty, a vaginoscopy can be performed to identify the presence of a vaginal septum and characterize the number and location of the cervix or cervices. If the vagina is absent on exam, a diagnostic laparoscopy can be performed to determine if Müllerian structures (upper vagina, cervix, uterus, and Fallopian tubes) or the ovaries are present. This information is valuable for counseling the family and can influence possible gynecologic reconstruction options either at the time of the initial repair or in the future, at the time of thelarche or later in life."