The utility of ultrasound and magnetic resonance imaging versus surgery for the characterization of müllerian anomalies in the pediatric and adolescent population

Examining Results of Post-Thelarche Screening Pelvic Ultrasound in Females with Anorectal Malformations

STUDY OBJECTIVE

Mullerian duct anomalies are common in females with anorectal malformations (ARM), though there are no universally recommended screening protocols for identification. Historically, at our institution, we have recommended a screening pelvic ultrasound six months after thelarche and menarche. We aimed to evaluate outcomes associated with our post-thelarche screening pelvic ultrasounds (PUS) in females with ARM.

METHODS

An IRB-approved retrospective chart review was performed of all female patients ≥ 8 years old with ARM and documented thelarche. Data was collected on demographics and clinical course. Primary outcome was adherence to recommended PUS. Secondary outcomes included imaging correlation with suspected Mullerian anatomy and need for intervention based on imaging findings.

RESULTS

A total of 112 patients met inclusion criteria. Of these, 87 (77.7%) completed a recommended post-thelarche screening PUS. There were no differences in completion based on age, race, establishment with a primary care provider, insurance status, or type of ARM. Nine patients (10.3%) had findings on their PUS that did not correlate with their suspected Mullerian anatomy; five (5.7%) required intervention with two requiring menstrual suppression, two requiring surgical intervention, and one requiring further imaging.

CONCLUSION

Most patients completed the recommended post-thelarche screening PUS. In a small subset of patients, PUS did not correlate with suspected Mullerian anatomy and generated a need for intervention. Post-thelarche PUS can be a useful adjunct in patients with ARM to identify gynecologic abnormalities.

Accessory and cavitated uterine masses: a case series and review of the literature

Objectives

The purpose of this study is to report nine patients of young women who underwent a surgical treatment of an accessory and cavitated uterine mass (ACUM) in our hospital between 2014 and 2022 and review all cases described in the literature.

Material and methods

The principal outcomes measured are the imaging techniques used to determine the diagnosis, the type of surgery used and the post-operative evolution of symptoms. We also report and analyse the 79 patients found in the literature since 1996 in addition to our 9 patients.

Results

Surgical excision is the only long-lasting treatment. Small invasive surgery with laparoscopic access is the gold standard and most widely used (83.0%). Some new therapeutic procedures have been recently described of which ethanol sclerotherapy seems very promising. Post-operatively, 54.5% of patients have a complete relief of symptoms. MRI is the best imaging technique to identify ACUM. Finally, we refine the description of this pathology and give a more precise definition of it.

Conclusion

Through our literature review and the analysis of our cases, we want to underline an important diagnostic criterion of this pathology: the fallopian tube on the homolateral side of the ACUM never communicates with the latter. It is a capital element for differential diagnosis.

OHVIRA (Obstructed Hemivagina and Ipsilateral Renal Anomaly or Herlyn-Werner-Wunderlich syndrome): Is it time for age-specific management?

BACKGROUND

OHVIRA (Obstructed Hemivagina and Ipsilateral Renal Anomaly or Herlyn-Werner-Wunderlich syndrome) is a rare Müllerian malformation. Usually, symptoms begin with worsening dysmenorrhea in post-menarche adolescents. The management in pre-menarche period is controversial and has only recently been subject of study.

AIMS

To review the experience of a pediatric tertiary center and to propose an age-specific management protocol for patients diagnosed before menarche.

METHODS

A retrospective cohort study (review of medical records - period 2009-2021).

RESULTS

Twenty-eight patients were diagnosed (mean age 11.9 years), seven (25%) before menarche, one (3%) perinatally. One patient had Floating-Harbor syndrome. Twenty-three patients had ipsilateral renal agenesis, while five had a multicystic-dysplastic kidney. The contralateral kidney showed hypertrophy in 25 patients, pelvicalyceal ectasia in 8 and dysplasia in 1. Twenty-four patients were symptomatic. Three of the seven diagnosed prior to menarche had symptoms. All post-menarche diagnosed patients were symptomatic. Twenty-six patients underwent surgery (one-stage drainage, vaginal septal resection, and vaginoplasty). Asymptomatic pre-menarche patients were followed-up until surgery after menarche onset. No patient underwent surgery prior to menarche solely for OHVIRA diagnosis. At follow-up (median 3.5 years, 3 lost to follow-up), eighteen patients were asymptomatic, one developed endometriosis, one had impaired renal function, two needed reoperations.

CONCLUSIONS

Pre-menarche OHVIRA patients, without symptoms, should undergo regular follow-up until the onset of menarche. Surgery must be considered in post-menarche or symptomatic patients. Post-operative, long-term follow-up is required, evaluating both renal and gynecological issues.

LEVEL-OF-EVIDENCE

IV.

Diagnosis and Management of Mullerian Anomalies Across Differing Resource Settings: Worldwide Adaptations

BACKGROUND

Mullerian anomalies affect 7% of reproductive age women. It is important to have a basic understanding of these conditions, given they can affect women at any stage of life and have potential impacts on fertility and pregnancy. This article seeks to review these anomalies as well as specific diagnostic pitfalls and strategies to approach these conditions in both high- and low-resource environments.

METHODS

This review was undertaken with a PubMed focused search, using terms related to the diagnosis and management of Mullerian anomalies in many worldwide settings. Consideration was made to assess the medical resources available in low- and middle-income countries (LMICs), which could impact diagnostic and management decisions, compared with high-income countries (HICs). Concurrent medical conditions and both gynecologic and obstetric outcomes were also searched. Practice recommendations from international societies were also reviewed and compared. Finally, 4 conditions were evaluated more closely to assess management differences based on geographic locations and whether the countries were LMICs or HICs; specifically, those evaluated were lower vaginal atresia, uterovaginal agenesis, bicornuate uterus, and septate uterus.

DISCUSSION

Mullerian anomalies encompass a wide variety of conditions, ranging from subtle anatomic changes without concurrent anomalies to complex conditions, associated with anomalies of the kidney or spine, which could impact the ability to manage certain conditions based on medical resources available geographically. A systematic approach and provider expertise is important for appropriate diagnosis and management, independent of geographic location. Counseling is critical for medical and surgical decision-making and might be limited or guided by the resources available in certain settings or even by existing laws.

CONCLUSIONS

Limited outcomes are available among patients with Mullerian anomalies in LMICs; however, the management varies based on the basic tools available to address acute needs, as well as long-term fertility and obstetric concerns. More research is needed in this population, which could help drive the importance of early diagnosis and management not only in HICs but also in LMICs, where individualization strategies are key.

A 13-Year-Old Girl with Primary Amenorrhea

A 13-Year-Old Girl with Primary AmenorrheaA 13-year-old girl presented for evaluation of intermittent lower abdominal pain and absence of menarche. How do you approach the evaluation, and what is the diagnosis?

Patients with disorders of sex development

Disorders of sex development (DSDs) are a genetically and clinically heterogeneous group of congenital conditions of the urogenital tract and reproductive system. Time and spatially controlled transcription factors, signal molecules, and an array of different hormones are involved in the development of sex characteristics, and variations in their pathways and actions are associated with DSD. These conditions may be caused by numerical or structural variations in sex chromosomes as well as autosomes, variations in genes involved in gonadal and/or genital development, and changes in gonadal and/or adrenal steroidogenesis. Endogenous or exogenous (maternal) and possibly endocrine disruptors may also interfere with genital development.

Congenital Obstructive Müllerian Anomaly: The Pitfalls of a Magnetic Resonance Imaging-Based Diagnosis and the Importance of Intraoperative Biopsy

A retrospective cohort study of the concordance between the magnetic resonance imaging (MRI) diagnosis and final diagnosis in patients with Müllerian duct anomalies (MDAs) was conducted, and diagnostic clues were suggested. A total of 463 cases of young women who underwent pelvic MRIs from January 1995 to February 2019 at Seoul Asan Medical Center were reviewed. Interventions consisted of clinical examinations, abdominal or transvaginal/rectal ultrasound, MRI, and operative procedures, including hysteroscopy and laparoscopy. The concordance of the diagnosis between the results obtained with MRI and those obtained with surgeries was evaluated. It was found that a total of 225 cases (48.6%) showed genital tract anomalies on MRI. Among them, 105 cases (46.7%) underwent reconstructive surgery. Nineteen cases (8.4%) revealed discrepancies between the final diagnosis after surgery and the initial MRI findings and eleven cases (57.9%) had cervical anomalies. Incorrect findings associated with the MRIs were particularly evident in biopsied cases of cervical dysgenesis. A combination of physical examination, ultrasound, and MRI is suitable for preoperative work-up in the diagnoses of congenital obstructive anomalies. However, it is recommended that a pathologic confirmation of tissue at the caudal leading edge be made in obstructive genital anomalies, in cases of presumptive vaginal or cervical dysgenesis.

Case Report: Uterine Anomalies in Girls With a Congenital Solitary Functioning Kidney

Unilateral renal agenesis and multicystic dysplastic kidney, resulting in a contralateral solitary functioning kidney (SFK), are part of the broad spectrum of congenital anomalies of the kidney and urinary tract (CAKUT). In girls with SFK, screening for asymptomatic Müllerian anomalies of uterus and vagina is not yet routinely performed, and therefore often overlooked until clinical complications in the menstrual cycle or fertility process occur. In this case series, we report on four teenagers with congenital SFK presenting with menstrual problems due to a Müllerian anomaly. Routine peri-menarchal screening for Müllerian anomalies in girls with SFK may provide timely counseling, surgical treatment and prevention of associated complications such as endometriosis, infertility and miscarriages.

Clinical and ultrasound characteristics of vaginal lesions

OBJECTIVE

Ultrasound examination represents the most important diagnostic method to preoperatively assess gynecological diseases. However, the ultrasound characteristics of vaginal pathologies are poorly investigated. The aim of this study was to describe the clinical and ultrasound characteristics of vaginal lesions detected at ultrasound.

METHODS

This was a single center, prospective, observational study including patients with vaginal masses examined from January 2017 to May 2019. Morphologic sonographic characteristics of the lesions were described as unilocular, multilocular, unilocular-solid, multilocular-solid, and solid. For the analysis, patients were grouped into a 'malignant group', including patients with confirmed malignancy at final histology, and a 'benign group', including patients with a confirmed benign pathology at final histology and patients without a histological diagnosis but with a lesion that manifested no changes during follow-up.

RESULTS

44 patients were enrolled. 22 (50%) of 44 lesions were benign: 12 (54.5%) of these underwent ultrasound follow-up and did not show any changes at the 12 month follow-up whereas 10 (45.5%) lesions had surgical excision which confirmed the benign nature. The remaining 22 (50%) of 44 lesions underwent surgery because of suspicion of malignancy: histology confirmed a malignancy in 20 (90.9%) of 22 cases. Benign lesions were described as follow: 11/24 (45.8%) unilocular, 3/24 (12.5%) multilocular with two locules, and 10/24 (41.7%) solid lesions. Malignant lesions were solid in 19/20 (95%) cases and multilocular-solid in 1/20 (5%). Most benign lesions had a color score of 1-2 (20/24, 83.4%) while malignant lesions had a color score of 3-4 (18/20, 90%).

CONCLUSION

A typical ultrasound image of a benign lesion was a unilocular cyst or hypoechoic solid mass with no or minimal vascularization on color Doppler examination. Malignant vaginal lesions were hypoechoic solid tumors with irregular margins and moderate/rich vascularization or multilocular-solid. Ultrasound should be used to supplement the clinician in the management of vaginal lesions.

A Review of Mullerian Anomalies and Their Urologic Associations

Structural anomalies of the female reproductive tract, known as Mullerian anomalies, can occur in isolation or in association with anomalies of other organ systems. Due to shared embryology, the most common association in up to 40% of patients is with renal, ureteral, and bladder anomalies. Affected girls can have a wide range of genitourinary symptoms with urologists playing an integral role in their diagnosis and treatment. To facilitate the recognition and management of these conditions, we provide a review of Mullerian anomalies including the embryology, classifications, syndromes, evaluation, and treatments with attention to their urologic applicability.

Pediatric and adolescent gynecology: Treatment perspectives in minimally invasive surgery

Minimally invasive surgery (MIS) is widely utilized across multiple surgical disciplines, including gynecology. To date, laparoscopy is considered a common surgical modality in children and adolescents to treat gynecological conditions. Robotic surgical devices were developed to circumvent the limitations of laparoscopy and have expanded the surgical armamentarium with better magnification, dexterity enhanced articulating instruments with 5-7 degrees of freedom, and ability to scale motion thus eliminating physiologic tremor. There are well-documented advantages of MIS over laparotomy, including decreased post-operative pain, shorter recovery times, and better cosmetic results. Indications for MIS in pediatric gynecology are reported in this review and technical considerations are described to highlight new treatment perspectives in children and adolescents, which have already been described in the literature regarding adult patients.

A clinical algorithm to diagnose differences of sex development

The diagnosis and management of children born with ambiguous genitalia is challenging for clinicians. Such differences of sex development (DSDs) are congenital conditions in which chromosomal, gonadal, or anatomical sex is atypical. The aetiology of DSDs is very heterogenous and a precise diagnosis is essential for management of genetic, endocrine, surgical, reproductive, and psychosocial issues. In this Review, we outline a step-by-step approach, compiled in a diagnostic algorithm, for the clinical assessment and molecular diagnosis of a patient with ambiguity of the external genitalia on initial presentation. We appraise established and emerging technologies and their effect on diagnosis, and discuss current controversies.

Magnetic resonance imaging of Müllerian duct anomalies in children

Müllerian duct anomalies encompass a wide variety of disorders resulting from abnormalities in the embryological development of the Müllerian ducts. In the prepubertal pediatric population, Müllerian duct anomalies are often incidental findings on studies obtained for other reasons. The onset of menses can prompt more clinical symptoms. Proper characterization of Müllerian duct anomalies is important because these anomalies can affect the development of gynecological disorders as well as fertility. Müllerian duct anomalies also carry a high association with other congenital anomalies, particularly renal abnormalities. MRI is widely considered the best modality for assessing Müllerian duct anomalies; it provides multiplanar capability, clear anatomical detail and tissue characterization without ionizing radiation. MRI allows for careful description of Müllerian duct anomalies, often leading to classification into the most widely accepted classification system for Müllerian duct anomalies. This system, developed by the American Society of Reproductive Medicine, includes seven subtypes: uterine agenesis/hypoplasia, unicornuate, didelphys, bicornuate, septate, arcuate, and diethylstilbestrol (DES) drug-related uterus. In cases of complex anomalies that defy classification, MRI allows detailed depiction of all components of the anatomical abnormality, allowing for proper management and surgical planning.

The Thessaloniki ESHRE/ESGE consensus on diagnosis of female genital anomalies

STUDY QUESTION

What is the recommended diagnostic work-up of female genital anomalies according to the European Society of Human Reproduction and Embryology (ESHRE)/European Society for Gynaecological Endoscopy (ESGE) system?

SUMMARY ANSWER

The ESHRE/ESGE consensus for the diagnosis of female genital anomalies is presented.

WHAT IS KNOWN ALREADY

Accurate diagnosis of congenital anomalies still remains a clinical challenge because of the drawbacks of the previous classification systems and the non-systematic use of diagnostic methods with varying accuracy, some of them quite inaccurate. Currently, a wide range of non-invasive diagnostic procedures are available enriching the opportunity to accurately detect the anatomical status of the female genital tract, as well as a new objective and comprehensive classification system with well-described classes and sub-classes.

STUDY DESIGN, SIZE, DURATION

The ESHRE/ESGE CONgenital UTerine Anomalies (CONUTA) Working Group established an initiative with the goal of developing a consensus for the diagnosis of female genital anomalies. The CONUTA working group and imaging experts in the field have been appointed to run the project.

PARTICIPANTS/MATERIALS, SETTING, METHODS

The consensus is developed based on: (i) evaluation of the currently available diagnostic methods and, more specifically, of their characteristics with the use of the experts panel consensus method and of their diagnostic accuracy by performing a systematic review of evidence and (ii) consensus for the definition of where and how to measure uterine wall thickness and the recommendations for the diagnostic work-up of female genital anomalies, based on the results of the previous evaluation procedure, with the use of the experts panel consensus method.

MAIN RESULTS AND THE ROLE OF CHANCE

Uterine wall thickness is defined as the distance between the interostial line and external uterine profile at the midcoronal plane of the uterus; alternatively, if a coronal plane is not available, the mean anterior and posterior uterine wall thickness at the longitudinal plane could be used. Gynecological examination and two-dimensional ultrasound (2D US) are recommended for the evaluation of asymptomatic women. Three-dimensional (3D) US is recommended for the diagnosis of female genital anomalies in 'symptomatic' patients belonging to high risk groups for the presence of a female genital anomaly and in any asymptomatic woman suspected to have an anomaly from routine evaluation. Magnetic resonance imaging (MRI) and endoscopic evaluation are recommended for the subgroup of patients with suspected complex anomalies or in diagnostic dilemmas. Adolescents with symptoms suggestive for the presence of a female genital anomaly should be thoroughly evaluated with 2D US, 3D US, MRI and endoscopically.

LIMITATIONS, REASONS FOR CAUTION

The various diagnostic methods should always be used in the proper way and evaluated by experts to avoid mis-, over- and underdiagnosis.

WIDER IMPLICATIONS OF THE FINDINGS

The role of a combined US examination and outpatient hysteroscopy should be prospectively evaluated. It is a challenge for further research, based on diagnosis, to objectively evaluate the clinical consequences related to various degrees of uterine deformity.

STUDY FUNDING/COMPETING INTERESTS

None.

The Thessaloniki ESHRE/ESGE consensus on diagnosis of female genital anomalies

What is the recommended diagnostic work-up of female genital anomalies according to the European Society of Human Reproduction and Embryology (ESHRE)/European Society for Gynaecological Endoscopy (ESGE) system? The ESHRE/ESGE consensus for the diagnosis of female genital anomalies is presented. Accurate diagnosis of congenital anomalies still remains a clinical challenge due to the drawbacks of the previous classification systems and the non-systematic use of diagnostic methods with varying accuracy, with some of them quite inaccurate. Currently, a wide range of non-invasive diagnostic procedures are available, enriching the opportunity to accurately detect the anatomical status of the female genital tract, as well as a new objective and comprehensive classification system with well-described classes and sub-classes. The ESHRE/ESGE Congenital Uterine Anomalies (CONUTA) Working Group established an initiative with the goal of developing a consensus for the diagnosis of female genital anomalies. The CONUTA working group and imaging experts in the field have been appointed to run the project. The consensus is developed based on (1) evaluation of the currently available diagnostic methods and, more specifically, of their characteristics with the use of the experts panel consensus method and of their diagnostic accuracy performing a systematic review of evidence and (2) consensus for (a) the definition of where and how to measure uterine wall thickness and (b) the recommendations for the diagnostic work-up of female genital anomalies, based on the results of the previous evaluation procedure, with the use of the experts panel consensus method. Uterine wall thickness is defined as the distance between interostial line and external uterine profile at the midcoronal plane of the uterus; alternatively, if a coronal plane is not available, the mean anterior and posterior uterine wall thickness at the longitudinal plane could be used. Gynaecological examination and two-dimensional ultrasound (2D US) are recommended for the evaluation of asymptomatic women. Three-dimensional ultrasound (3D US) is recommended for the diagnosis of female genital anomalies in “symptomatic” patients belonging to high-risk groups for the presence of a female genital anomaly and in any asymptomatic woman suspected to have an anomaly from routine avaluation. Magnetic resonance imaging (MRI) and endoscopic evaluation are recommended for the sub-group of patients with suspected complex anomalies or in diagnostic dilemmas. Adolescents with symptoms suggestive for the presence of a female genital anomaly should be thoroughly evaluated with 2D US, 3D US, MRI and endoscopy. The various diagnostic methods should be used in a proper way and evaluated by experts to avoid mis-, over- and underdiagnosis. The role of a combined ultrasound examination and outpatient hysteroscopy should be prospectively evaluated. It is a challenge for further research, based on diagnosis, to objectively evaluate the clinical consequences related to various degrees of uterine deformity.

Magnetic Resonance Imaging of Developmental Anomalies of the Uterus and the Vagina in Pediatric Patients

Developmental anomalies of the uterus and the vagina are associated with infertility and miscarriage and are most commonly detected in the postpubertal age-group. These conditions may also present in younger patients as a mass or pain owing to obstruction of the uterus or the vagina. Associated urinary tract anomalies are common, as well. Accurate diagnosis and thorough description of these anomalies is essential for appropriate management; however, evaluation may be difficult in an immature reproductive tract. Magnetic resonance imaging technique pertinent to imaging of the pediatric female reproductive tract is presented and illustrated along with the findings associated with various anomalies.

Müllerian cyst of the vagina masquerading as a cystocele

Müllerian cysts are usually small, ranging from 0.1 to 2 cm in diameter. Rarely, they may be enlarged and mistaken for other structures, such as a cystocele or urethral diverticulum. We report on a female with symptomatic vaginal wall prolapse, diagnosed as a vaginal Müllerian cyst, which was originally misdiagnosed as a cystocele. The mass was soft and could be compressed manually without difficulty. Perineal ultrasonography and cystoscopy revealed no relationship between the cyst and the lower urinary tract, suggesting independence of the lesion. We performed surgical treatment with complete excision of the mass via a vaginal approach under spinal anaesthesia. The pathology result confirmed a benign Müllerian cyst lined with mucinous and squamous epithelium. When evaluating an anterior vaginal cyst, assessment of the lesion via history taking and pelvic examination is important to confirm both lesion size and location. Perineal ultrasonography performed with an empty bladder is useful to differentiate such vaginal cysts and to define their communication, if any, with adjacent organs.

Obstructive reproductive tract anomalies

BACKGROUND

Approximately 7% of girls will have an anatomic abnormality in their reproductive tract, diagnosed before or after puberty.

OBJECTIVE

It is important for providers to be aware of the obstructive reproductive tract conditions, the way in which various conditions present, and the way in which such conditions should be managed.

DESIGN

Systematic review of the literature using the GRADE evidence system.

RESULTS

There is limited data in most areas of obstructive reproductive tract anomalies; however, some retrospective and prospective series with small numbers are still useful to guide clinical practice.

CONCLUSIONS

Recommendations are based on limited or inconsistent scientific evidence. Recommendations are based primarily on consensus and expert opinion.

Torsion of fallopian tube remnant associated with noncommunicating rudimentary horn in adolescent girl with unicornuate uterus

BACKGROUND

The prevalence of müllerian anomalies may be as high as 7% in the general population, yet there is scant published literature on adnexal torsion occurring in these patients.

CASE

A 14-year-old female presented with right lower quadrant pain. Pelvic ultrasonography demonstrated a 2-cm simple right adnexal cyst. Diagnostic laparoscopy revealed a unicornuate uterus with a normal left uterine horn and fallopian tube but atretic and cordlike müllerian structures on the right side. Torsion of the right tubal remnant and two paratubal cysts were noted and the structures were then excised.

SUMMARY AND CONCLUSION

Agenesis, hypoplasia, or maldevelopment of müllerian structures may predispose patients to an increased risk of adnexal torsion secondary to looser ligamentous attachments and consequent lack of fixation to the pelvic sidewall.

Müllerian duct and related anomalies in children and adolescents

Although many Müllerian duct anomalies do not require treatment, surgical intervention is sometimes necessary to enable sexual activity or to preserve fertility. The identification of these anomalies is important for optimal clinical management or surgical treatment. Magnetic resonance (MR) imaging is a robust method for adequately evaluating and characterizing uterine and vaginal anomalies. The information provided by MR imaging allows for a more complete understanding of the malformation, facilitating management decisions and potentially changing the outcome. In this article, the embryology, classification, and MR imaging findings of Müllerian duct and related anomalies in children and adolescents are reviewed.