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Journal of Medical Case Reports logoLink to Journal of Medical Case Reports
. 2019 Oct 31;13:323. doi: 10.1186/s13256-019-2258-6

Herlyn-Werner-Wunderlich syndrome presenting with dysmenorrhea: a case report

Dilruba Sharmen Nishu 1,, Md Monir Uddin 2, Khadija Akter 1, Shameema Akter 1, Monira Sarmin 3, Sartaj Begum 1
PMCID: PMC6822463  PMID: 31666132

Abstract

Background

Herlyn-Werner-Wunderlich syndrome is a rare congenital anomaly characterized by uterus didelphys, obstructed hemivagina, and ipsilateral renal agenesis. The most common presentation is abdominal pain, dysmenorrhea, and abdominal mass secondary to hematocolpos. We present the first case report on Herlyn-Werner-Wunderlich syndrome from Bangladesh.

Case presentation

A 15-year-old Asian girl presented with lower abdominal pain of 3 months’ duration. She had had menarche 3 months earlier and had a regular menstrual cycle with cyclical abdominal pain. Abdominal examination found a tender mass on the right iliac fossa. Further evaluation with ultrasound revealed distended endometrial cavity filled with complex fluid and nonvisualization of the right kidney. Pelvic magnetic resonance imaging showed absent right kidney and two separate endometrial stripes surrounded by endometrium and a muscular layer. The right endometrial cavity and cervix were distended with blood. This magnetic resonance imaging finding is consistent with Herlyn-Werner-Wunderlich syndrome with uterine didelphyis, right-sided hematometra resulting from obstructed hemivagina, and ipsilateral agenesis of the right kidney. The vaginal septum was resected for vaginoplasty. She was discharged 5 days after surgery and came for follow-up after 7 days. Vaginal examination revealed a healthy wound with no adhesion of the vaginal wall. She also informed us that she had started regular menstruation without any pain 30 days after the operation.

Conclusion

An unusual presentation of regular menstruation and nonspecific abdominal pain delays the diagnosis, which can lead to complications such as endometriosis and infertility. Awareness is required; otherwise, misdiagnosis clearly can occur.

Keywords: Herlyn-Werner-Wunderlich syndrome, Obstructed hemivagina, Müllerian anomaly, Vaginoplasty

Background

Herlyn-Werner-Wunderlich (HWW) syndrome, a rare variant of paramesonephric (müllerian) duct anomalies, is characterized by the triad of uterus didelphys with obstructed hemivagina and ipsilateral renal agenesis [1]. Obstructed hemivagina and ipsilateral renal anomaly (OHVIRA) syndrome is another name for it [2]. The most common presentation is abdominal pain, dysmenorrhea, and abdominal mass secondary to hematocolpos [3]. In 1922, Purslow first described this syndrome in a young woman who presented with gradually increasing pelvic pain and a pelvic mass with regular menstruation [4].

We describe a case of a young girl with the triad of uterus didelphys, obstructed hemivagina, and right renal agenesis who was diagnosed by pelvic ultrasound, with confirmation by magnetic resonance imaging (MRI), and successfully managed by transvaginal resection of the vaginal septum.

Case presentation

A 15-year-old Asian girl presented to the emergency department of Cumilla Medical College and Hospital, Bangladesh, with increasing pain in the right lower abdomen of 3 months’ duration. She experienced severe, colicky pain in the right lower abdomen with the onset of menstruation. Her pain did not radiate and was not associated with fever, vomiting, or urinary complaints. She denied any past medical or surgical history. She had had menarche 3 months earlier and had a regular menstrual cycle with dysmenorrhea and cyclical abdominal pain. For the latter problem, she was prescribed analgesics from a local pharmacy, which resulted in transient improvement of the symptoms. She was born at term of an uncomplicated pregnancy, and she had no family history of congenital diseases. She was not sexually active and did not take contraceptive pills or hormone therapy. She belonged to a middle-class family. Regarding her developmental history, she achieved neck control at 4 months, sitting at 7 months, walking unsteadily from 13 months, and walking steadily from 20 months. Her weight was 33 kg, and her height was 144 cm, both were below the fifth percentile for her age and sex according to the National Center for Health Statistics, Centers for Disease Control and Prevention, and were normal. Her parents were nonconsanguineous. On the day of admission, she was afebrile, and her vital signs were stable except for mild anemia (pulse 84 beats/minute, blood pressure 125/80 mmHg, anemia +, temperature 98 ° F). The results of her other general physical examinations were unremarkable. Abdominal examination found a tender mass on the right iliac fossa. Per rectal examination revealed a mass in the pouch of Douglas. The patient was admitted to the gynecology department, where she was medicated with drugs (analgesic, omeprazole, paracetamol) for relief of symptoms until an MRI scan was obtained and a corrective surgery planned. Routine investigations were done. The patient’s complete blood count was within normal limits with a hemoglobin level of 11.1 g/dl and erythrocyte sedimentation rate of 62 mm/first hour. Her white blood cell count was 12 × 109/L with a differential count of 62.5% neutrophils, 29% lymphocytes, and 6.8% monocytes. Her red blood cell (RBC) count was 3.97 × 1012/L. Her platelet count was 431 × 109/L. Routine urine and microscopic examinations showed no features of infection (quantity: sufficient, color: straw, albumin, sugar, and phosphate: nil, pus cells: 4–6/high-power field [HPF], epithelial cells: 3–4/HPF, RBCs: nil). Further evaluation with ultrasound showed distended endometrial cavity filled with complex fluid (Fig. 1) with low-level internal echoes and nonvisualization of the right kidney. A provisional diagnosis of uterus didelphys, hematometra, hematocolpos, and agenesis of the right kidney was made. Pelvic MRI and intravenous urography (IVU) were performed for further evaluation. Pelvic MRI showed two separate endometrial stripes urrounded by endometrium and a muscular layer (Fig. 2). The right endometrial cavity and cervix were distended with blood (Figs. 3 and 4), possibly owing to obstructed right hemivagina. The right kidney was absent (Fig. 2). An MRI finding was suggestive of uterine didelphys with right-sided hematometra resulting from obstructed hemivagina with ipsilateral agenesis of the right kidney (HWW syndrome). IVU revealed an absent or nonexcreting right kidney and normal excreting left kidney. Identification and resection of the vaginal septum were done (Fig. 5) and reached up to the right cervix for the drainage of tarry blood (Fig. 6). Thus vaginal canal was reconstructed (Fig. 7). There were no perioperative or postoperative complications. She was discharged 5 days after surgery.

Fig. 1.

Fig. 1

Ultrasonogram of lower abdomen showing endometrial cavity (arrow) filled with large, thick collection that extends up to the cervix

Fig. 2.

Fig. 2

Coronal short tau inversion recovery image showing absence of right kidney (dashed arrow) and two separate endometrial stripes (uterine didelphys) surrounded by separate muscle coat (arrows)

Fig. 3.

Fig. 3

Sagittal T2-weighted image showing dilation of cervical canal (short arrow) with abrupt termination at vaginal fornix (long arrow), resulting in obstructed hemivagina. Endometrial cavity was mildly dilated and contained hemorrhagic collection

Fig. 4.

Fig. 4

Axial T2-weighted image showing two separate uterine horns (short arrows) and distention of right endometrial cavity (long arrow)

Fig. 5.

Fig. 5

Vaginal septum (arrow) was identified perioperatively for resection

Fig. 6.

Fig. 6

Drainage of tarry inspissated blood

Fig. 7.

Fig. 7

Reconstructed vaginal canal after resection of vaginal septum

She was seen in regular follow-up. She first came for follow-up 7 days after discharge. She was in good health and had no new complaints. Vaginal examination revealed a healthy wound with no adhesion of the vaginal wall. Thus, her recovery was uneventful. Later, she also informed us that she had started regular menstruation without any pain 30 days after the operation. She visited the hospital for another two follow-up visits almost 1 month apart. Her menstrual cycle was normal, and she had no dysmenorrhea or any other complaints.

Discussion

We present a case of HWW syndrome in a 15-year-old girl who presented with a regular menstrual cycle and cyclical abdominal pain since her menarche. Ultrasonographic evaluation in a medical college hospital revealed distended endometrial cavity filled with complex fluid and nonvisualization of the right kidney. Pelvic MRI showed an absent right kidney and two separate endometrial stripes surrounded by endometrium and muscular layer. The right endometrial cavity and cervix were distended with blood. Thus, the diagnosis of HWW syndrome was made on the basis of patient history and MRI findings of uterine didelphys, right-sided hematometra resulting from obstructed hemivagina, and ipsilateral agenesis of the right kidney. Thereafter, the vaginal septum was resected for vaginoplasty. The literature revealed that cases can present in a varied way from dysmenorrheal, pelvic, or vaginal mass; abnormal vaginal discharge; acute retention of urine; fever; vomiting to infertility; complicated pregnancy; and labor or endometriosis. This is a case in which the diagnosis was reached early and corrective surgery was done properly and resulted in a better recovery with reestablishment of a regular menstrual cycle without any complications.

HWW syndrome is a triad of obstructed hemivagina, uterine didelphys, and ipsilateral renal agenesis. The true incidence is variable between 0.1% and 3% [2]. The etiology is not well established. Embryological development is influenced by genetic and environmental factors. In HWW syndrome, there is an insult to the paramesonephric system and metanephros [5]. The uterus, fallopian tube, cervix, and upper two-thirds of the vagina develop from the paired paramesonephric ducts. The duct arises from the urogenital ridge [6]. Then, caudally, it runs lateral to the mesonephric duct, and finally, in the midline, it comes in close contact with the paramesonephric duct from the opposite side and fuses to form the uterus, the cervix, and the upper part of the vagina [6]. When they fail to fuse, they produce two hemiuteri and hemicervices, resulting in müllerian anomalies associated with OHVIRA syndrome [7]. An insult to the metanephric diverticulum results in ipsilateral agenesis of the ureter and kidney [8]. Based on the morphology of the vagina, HWW syndrome has been classified as class 1 (completely obstructed hemivagina) and class 2 (incompletely obstructed hemivagina). Both classes have two subclasses. Our patient’s case represents subclass 1.1 with uterus didelphys and blind hemivagina (Fig. 8) [9].

Fig. 8.

Fig. 8

Herlyn-Werner-Wunderlich syndrome based on vaginal morphology [9]

Usually, HWW syndrome remains undiagnosed and asymptomatic during early childhood with normal external genitalia [10]. Classically, a patient with HWW syndrome can present with severe dysmenorrhea a few months to 1 year after attaining menarche. This is what happened in our patient. For her dysmenorrhea, she received symptomatic management. Other patients can present with a pelvic or vaginal mass, abnormal vaginal discharge, acute retention of urine, fever, vomiting [11], infertility, complicated pregnancy and labor [12], or endometriosis. The mean age of presentation is about 15 years [13], which is quite similar to our patient’s case.

For diagnosis, ultrasound and computed tomography are useful. For imaging soft-tissue anatomy and identifying congenital anomalies, MRI is increasingly used. In our patient, the MRI findings of uterine didelphys with right-sided hematometra and obstructed hemivagina with ipsilateral agenesis of the right kidney made the diagnosis easier. Resection of the vaginal septum is the treatment of choice of obstructed hemivagina [1]. We have also followed the same principle. Vaginoplasty was done to reconstruct the vaginal canal with the drainage of tarry blood.

Conclusion

An unusual presentation of regular menstruation and nonspecific abdominal pain makes the diagnosis of HWW syndrome difficult and requires special clinical suspicion. Early identification warrants awareness of such an anomaly. Ultrasonographic and MRI findings can collectively help to diagnose this rare abnormality. A multidisciplinary approach guided by a gynecologist, radiologist, pediatric specialist, and pediatric surgeon is fundamental to avoid complications and achieve a better outcome.

Acknowledgements

We thank the patient and her caregivers for their consent to publish this report. We express our sincere thanks to all doctors, nurses, and cleaners of the unit for their invaluable support and contribution to patient care.

Abbreviations

HPF

High-power field

HWW

Herlyn-Werner-Wunderlich

IVU

Intravenous urography

MRI

Magnetic resonance imaging

OHVIRA

Obstructed hemivagina and ipsilateral renal anomaly

RBC

Red blood cell

Authors’ contributions

SB, DSN, KA, and SA performed the operation. SB, DSN, KA, SA, MMU, and MS determined the treatment plan. DSN and SB conducted the follow-up. DSN and MS wrote the draft of the case report, which was revised by SB and MMU. All authors read and approved the final manuscript.

Funding

The authors have no financial involvement with any organization that conflicts with the subject matter discussed in this report.

Availability of data and materials

We will not be able to share medical imaging data, because they are not fully anonymous.

Ethics approval and consent to participate

Not applicable.

Consent for publication

Written informed consent was obtained from the patient’s legal guardian for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.

Competing interests

The authors declare that they have no competing interests.

Footnotes

Publisher’s Note

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Associated Data

This section collects any data citations, data availability statements, or supplementary materials included in this article.

Data Availability Statement

We will not be able to share medical imaging data, because they are not fully anonymous.


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