OBJECTIVE: To describe the clinical and imaging characteristics of Herlyn-Werner-Wunderlich syndrome (HWWS).
METHODS: This study presented an observational case series involving consecutive patients diagnosed with HWWS, whose medical records were retrospectively reviewed. From June 2012 to December 2022, there were a total of 85 patients with HWWS enrolled in our study. We obtained the medical history, including demographic characteristics, clinical presentation, treatment, complications, and radiologic examinations performed. Patients > 18 years of age (n = 58) were recontacted.
RESULTS: In our analysis, 27 patients were categorised as having complete obstruction, and 58 were categorised as having incomplete obstruction. The mean age at the onset of symptoms and diagnosis of complete obstruction was significantly younger than incomplete obstruction (P < 0.05). For complete obstruction, the median time between menarche and the onset of symptoms was 2.1 years, while for incomplete obstruction, it was 5.3 years. There was a significantly lower incidence of intermittent mucopurulent discharge, irregular vaginal haemorrhage, and occasional examination findings of complete obstruction than incomplete obstruction (P < 0.05). Complete obstruction was significantly associated with dysmenorrhea and pelvic endometriosis compared with incomplete obstruction (P < 0.05).
CONCLUSIONS: There are distinct clinical differences between patients with complete obstruction of the hemivagina and those with incomplete obstruction. HWWS can manifest as various combinations of uterine anomalies, communications anomalies, and renal anomalies. Early recognition and treatment can avoid complications and preserve fertility.
UNASSIGNED: Herlyn-Werner-Wunderlich syndrome (HWWS); complete obstruction; incomplete obstruction; obstructed hemivagina; congenital malformation.

OBJECTIVE: As a rare malformation of the female reproductive system, Herlyn-Werner-Wunderlich syndrome (HWWS) was categorized into 3 classifications. It was recommended recently that, on the basis of the past classification, cervicovaginal atresia without communicating uteri should be newly added as classification 4. The surgical intervention will differ by type. To better optimize patient counseling as well as the preoperative evaluation and planning, our objective was to describe the ultrasound characteristics of each type of HWWS, including the new type.
METHODS: From January 1995 to November 2015, 37 cases of HWWS in with complete ultrasound information confirmed by surgery in the Peking Union Medical College Hospital were reviewed. We analyzed their ultrasound features, including hematometra, hematocervix, hematocolpos, and an ovarian chocolate cyst.
RESULTS: All of the ultrasound images of the 37 patients showed uterus didelphys with ipsilateral renal agenesis. Compared with the other 3 types, classification 4 showed distinctive ultrasound characteristics. Most cases of classification 4 showed hematometra (5 of 7 [71.4%]) and an ipsilateral ovarian chocolate cyst (6 of 7 [85.7%]), which was significantly higher than in the other 3. A rudimentary uterine horn was also a distinctive characteristic in this type. Meanwhile none of the classification 4 cases showed hematocervix or hydrocolpos, which were common signs of the other 3.
CONCLUSIONS: According to this new classification criteria for HWWS, ultrasound characteristics of the new classification 4 differ from the others. As classification 4 was suggested to have a different surgical option, we should pay attention to its ultrasound characteristics, which might help in providing more information about the treatment and prognosis to the gynecologist.

To demonstrate various types of longitudinal vaginal septa (LVS), their classification, and the surgical management of typical and unique morphologic conditions of LVS.
Video presentation of clinical appearance and surgical techniques for treatment of LVS.
University hospital and two private.
Representative cases from 121 consecutive women treated from 2013 to 2018 with LVS as a part of complex uterovaginal malformations or in isolated forms with [1] typical morphologic configuration of LVS, [2] rarer variants, or [3] specific anatomic restrictions.
Resection of LVS performed as a main surgical procedure in cases with didelphys and bicornuate uterus in symptomatic women and as a part of corrective surgery of complete septate uterus. The three main nonsuturing techniques used were speculoscopy and septum excision using three different electrosurgical modalities; speculoscopy with laparoscopic devices; and vaginoscopy with hysteroscopic instruments.
Clinical appearance and suggested classification, feasibility of surgery, and perioperative and anatomic results in a short follow-up period (3 months).
We identified distinct types of longitudinal vaginal septa. Considering clinical appearance, we suggest classification of LVS based on four main features: [2] completeness of vaginal division: partial and complete type; [2] the symmetricity: symmetric and asymmetric position (with dominant left and right side); [3] association with the cervix: merged and isolated forms; and [4] concomitant vaginal openings: normal, and narrow openings: vaginal stenosis and hymen persistent (Fig. 1). Vaginoscopic techniques by hysteroscope were successful in atraumatic treatment of women with substantial anatomic restrictions, and all of the presented techniques can be effectively used for typical LVS. However, vessel-sealing systems allow for bloodless surgery in contrast with other methods. This study was based on previously acquired data during large prospective study approved by the local ethics committee, and written informed consent to participate in the prospective study and permit publishing anonymous data regarding the medical images, videos of procedures, and results was obtained from all patients.
A new classification of longitudinal vaginal septum allows better characterization compared with the currently available classification systems. Different surgical modalities are discussed with their respective advantages and disadvantages. Vaginoscopic incision using resectoscope is a reasonable alternative for women with an intact hymen and vaginal stenosis. The impact of vaginal septum resection on obstetric, reproductive, and sexual outcomes should be assessed in randomized controlled trials and large well-designed studies.

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