Septate uterus with complete vaginal agenesis: an undescribed Müllerian malformation
© Springer-Verlag Berlin Heidelberg 2012
Received: 29 August 2012
Accepted: 18 October 2012
Published: 18 November 2012
Müllerian malformations are the consequence of failure in the fusion or resorption processes of the two Müllerian ducts at around 9 weeks of gestation . The mean prevalence in the general population is as high as 7 % .
Vaginal agenesis is a rare female congenital tract anomaly. Diagnosis is often made in adolescence due to amenorrhea or cyclic abdominal pain, and its incidence is around 1 in 4,000 female births. Mayer–Rokitansky–Küster–Hauser (MRKH) syndrome is the most frequent manifestation, with a vaginal dimple of varying depth (2–7 cm) and sometimes a rudimentary uterus or horn . In this particular case, the goal of treatment (surgical or nonsurgical) is to allow normal sexual intercourse, but restoring fertility is not possible. Different approaches have been described, such as Ingram’s modification of the Frank technique, the McIndoe procedure, the Vecchietti method, and the Williams vaginoplasty with its Creatsas modification . Here, we report the first case of complete vaginal agenesis associated with a septate uterus to be described in the literature.
An 11-year-old girl was referred to our department because of abdominal pain. At the age of 8 months, she had undergone cardiac interventricular communication closure, and at 10 months, surgery for vesicoureteral reflux. She had been suffering from primary amenorrhea and cyclic abdominal pain for 4 months. Abdominal examination was normal. The blood sample was also normal, without any inflammation or anemia.
Gynecological examination showed a normal vulva with a non-perforated intact hymen. The presence of a blind vaginal dimple was suspected.
Pelvic ultrasound showed a uterus measuring 45 × 20 mm with hematometra and, on the left side, another myometrial structure measuring 30 × 26 mm containing collected blood. Both ovaries were normal.
Because vaginal agenesis was complete, the vesicorectal space was dissected through the vaginal dimple and the pelvic peritoneum was opened following dissection of the retroperitoneal tissue. The cervix was reached and, after evacuation of the chocolate fluid, resection of the cervical septum was performed using cold scissors, with partial resection of the uterine septum due to the small size of the uterus. The cervix was sutured directly to the vaginal dimple using separate stitches (Vicryl 2-0 Johnson & Johnson, Hamburg, Germany). A Foley catheter was introduced into the uterus to allow uterine permeability. Prophylactic antibiotic treatment was given (IV cefuroxime 1.5 g 3× /day plus metronidazole IV 1.5 g 1× /day) for 2 days, followed by oral treatment.
Two weeks after surgery, vaginal examination was performed under sedation. The vulvar scar was deemed satisfactory. The intrauterine catheter was replaced and left in situ for another week.
Based on embryology, development of the female genital tract begins at 3 weeks of gestation and continues into the second trimester of pregnancy . In females, gonadal development results from chromosomal factors acting on primordial germ cells in the genital ridge . The genital tract develops independently of the gonads  and results from formation and fusion of the Müllerian ducts, urogenital sinus, and vaginal plate .
The cephalic portion of the Müllerian ducts develops into the fallopian tubes and the caudal portions fuse to form the uterus, cervix , and upper vagina . The urogenital sinus develops into the two sinovaginal bulbs that proliferate into the caudal portion of the Müllerian ducts, forming the vaginal plate . It appears that between 13 and 20 weeks, the septum formed by the median wall between the two Müllerian ducts undergoes resorption. Two theories may explain this resorption. It could be unidirectional from the caudal to the cranial part of the septum, or bidirectional originating in the isthmic portion and simultaneously extending caudally and cranially . Degeneration of the central cells of the vaginal plate forms the lumen of the lower vagina and hymen . Disruption at any point in this differentiation process can result in different types of congenital anomalies of the female genital tract .
In our case, fusion between the caudal portions of the Müllerian ducts was complete but resorption was not, causing septation of the uterus and cervix. The upper vagina was absent, probably due to the lack of fusion between the caudal portions of the Müllerian ducts and the urogenital sinus.
Genital malformations can have variable presentations, and different classifications have been made over the years. In 1988, the American Fertility Society proposed a simple classification system based on the anatomy of the female genital tract (especially the uterus) . In 2011, Acién et al. put forward a revised version of an earlier clinical and embryological classification of genital malformations from 2004 . In 2005, Oppelt et al. presented another classification based on the vagina cervix uterus adnexa-associated malformation. They added adnexal and extragenital anomalies that may be associated (renal, skeletal, cardiac, neurologic, and others) .
Most cases of vaginal agenesis encountered in the literature are MRKH syndrome, lower vaginal agenesis, or those associated with cervical atresia [10–14]. Oppelt et al. reported a cohort of 284 women with MRKH syndrome, only 0.7 % of whom presented with a hypoplastic uterus. None of them had a normal-sized septate uterus .
In cases where vaginal agenesis is associated with a normal uterus, different surgical treatments have been proposed to create a neovagina and communication with the uterus. Darwish et al.  performed a technique of transretropubic balloon vaginoplasty in four patients. Only one patient had a functioning uterus and a second operation was required to achieve communication between the cervix and neovagina [10, 11]. El Saman et al.  reported five cases of cervical atresia, two of which were associated with vaginal agenesis. They performed canalization of the cervical atresia by laparoscopy. A drain was passed through the uterine fundus, atretic cervix, and vagina or vaginal dimple (in case of associated vaginal agenesis). The drain was removed after the next menses. All patients presented with normal cycles, but their follow-up was short (less than 10 months). Kansagra et al.  performed ultrasound-guided balloon vaginoplasty in two patients to treat lower vaginal agenesis and complete transverse vaginal septum. After balloon dilatation of the vaginal agenesis/transverse septum, a Foley catheter was introduced into the upper vagina and left in place for 6 weeks. A 1-cm-diameter tract was obtained and the patients had painless menstruation.
In our particular case, the patient presented with complete vaginal agenesis and a septate uterus. The vaginal procedure assisted by laparoscopy allowed suture of the cervix directly to the vaginal dimple and resection of the uterocervical septum. The young patient subsequently experienced regular menses and the last follow-up was 34 months after surgery.
To our knowledge, this is the first case of uterocervical septum associated with complete vaginal agenesis to be described in the literature. The laparoscopy-assisted vaginal procedure allowed dissection of the vesicorectal space, creation of a 3-cm-length vagina, and establishment of regular menses. Further follow-up is now needed to evaluate the possibility of sexual intercourse after implementing this type of repair.
Conflict of interest
The authors report no conflict of interest. The authors alone are responsible for the content and writing of the paper.
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