Female urethral diverticula

Evaluation and management of urethral and periurethral masses in women

PURPOSE OF REVIEW

Female periurethral masses are an uncommon occurrence. The purpose of this review is to describe etiologies of female urethral and periurethral masses and to provide an update on diagnosis and management.

RECENT FINDINGS

The most common causes of periurethral and urethral masses in women are urethral caruncles, urethral diverticula, and Skene's gland cysts. Urethral meatal lesions such as urethral caruncles and prolapse can be managed conservatively with topical estrogen therapy and close follow-up or should be excised in the setting of thrombosis, significant or recurrent bleeding, acute urinary retention, or persistent pain. Benign periurethral gland masses, such as Skene's gland cysts, Gartner's duct cysts, and Mullerian duct cysts, remain rare. Recent case series reveal a high rate of surgical management of these lesions with few complications. Urethral malignancy or malignant transformation of benign etiologies are even rarer but can be aggressive in nature and should be treated promptly.

SUMMARY

Nonspecific urinary and vaginal symptoms as well as similar physical presentations make diagnosis of urethral and periurethral lesions in females difficult. Magnetic resonance imaging is useful for differentiation of periurethral masses. The decision for conservative or surgical management is typically guided by patient symptom bother, as well as concern for urethral malignancy.

A prospective cohort trial evaluating sexual function after urethral diverticulectomy

OBJECTIVE

Dyspareunia is a main symptom of urethral diverticulum in the female population, reported up to 60% of patients. Pain may cease after diverticulectomy as published in previous retrospective studies. To date scarce or no data exists on the postoperative outcome in terms of sexual function. The present study wants to quantify sexual function and evaluate lower urinary tract symptoms in sexually active patients after resection of urethral diverticulum.

STUDY DESIGN

In this prospective cohort trial at a tertiary referral center, we evaluated 40 female patients who presented with symptomatic urethral diverticulum and were sexually active. All of them underwent a standardized surgical procedure with inverted U-shape colpotomy between 2008 and 2018. The patients completed the Female Sexual Function Index (FSFI), which is determined by the mean score of the different domains, and underwent urodynamic assessment both at baseline examination before surgery and 12 months postoperatively. For statistical analysis, we conducted a paired Wilcoxon rank sum test analyzing the non-normally distributed non-parametric variables of the female sexual function index.

RESULTS

In two patients a malignancy was found in postoperative histology and received a different therapeutical approach. They have been excluded from statistical analysis. Sexual function improved in all domains (n = 38): total score (Z = -5.4, P < 0.000), satisfaction (Z = -5.3, P < 0.000), pain (Z = -5.4, P < 0.000), arousal (Z = -2.6, P = 0.010), lubrication (Z = -2.4, P = 0.020), desire (Z = -2.6, P = 0.009) and orgasm (Z = -2.2, P = 0.029). Maximum urethral closure pressure deteriorated from 39 to 36 cmH2O (P = 0.0008) and residual urine increased from 10 ml to 20 ml after surgery (P = 0.0019). No statistical significance is found for bladder capacity and free urinary flow.

CONCLUSIONS

All domains of the female sexual function index improved. Patients' bothersome symptoms, mainly pain may cease and sexual satisfaction increases, which is reassuring concerning patients' preoperative consent. We should be aware that occasionally an unexpected malignancy may be detected and it is mandatory to examine all excised tissue histologically. Lower urinary tract function remains clinically unchanged, although maximum urethral closure pressure deteriorated and postvoid residual increased though not being clinically significant.

Does a tailored magnetic resonance imaging technique affect the surgical planning and outcomes for different cystic urethral and periurethral swellings in females? Seven years tertiary center experience

PURPOSE

To evaluate the use of magnetic resonance imaging (MRI) in preoperative delineation and surgical planning for the management of female urethral and periurethral cystic vaginal swellings, with emphasis on postoperative surgical outcomes.

MATERIALS AND METHODS

This is a retrospective analysis of females complaining of periurethral and urethral cystic swellings referred to our tertiary center, who underwent MRI for preoperative planning in the period from January 2014 till January 2021, with a total number of 57 patients. Data retrieved from the medical records included: patients' demographics, presenting symptoms and signs, preoperative radiological investigations, duration of symptoms, previous surgical intervention, detailed intraoperative data, postoperative complications, and postoperative follow-up.

RESULTS

Urethral diverticulum was the commonest cystic lesion representing (64.9%) followed by Skene gland cysts in 14%, Mullerian cysts in 7%, Gartner cysts in 3.5%, and dermoid inclusion cysts in 10.5%. MRI precisely diagnosed the various pathological entities and anatomical complex lesions prior to surgery. This was confirmed after surgery and pathology analysis. All patients were followed up with a mean duration of 35 months, without any evidence of recurrence.

CONCLUSION

MRI as a standalone imaging technique is mandatory for diagnosis of all urethral and periurethral cystic lesions, as it offers the most accurate diagnostic modality for delineation of these lesions and hence aids in the preoperative surgical planning, aiming to avoid recurrence and improving surgical outcomes.

Benign Cysts of the Vulva and Vagina: A Comprehensive Review for the Gynecologic Surgeon

Importance

Gynecologists are experts in providing care to women with vulvovaginal complaints. Cysts located in the vagina and vulva can cause pain and irritation and incite concern. Given the relatively low prevalence of these cysts in the population, helpful diagnostic and management information for providers is scarce.

Objective

This article will detail the epidemiology, embryology, presentation, and management of vulvovaginal cysts.

Evidence Acquisition

We completed a comprehensive literature review for all available data and included case reports, case series, histological studies, and descriptive articles obtained from PubMed and relevant textbook chapters.

Results

In general, cystic lesions of the vagina and vulva are typically benign and asymptomatic and do not require intervention. Special attention should be paid to cysts arising in women older than 40 years and those that are fixed or associated with pain or bleeding. Cysts that require management may require imaging, often either with transvaginal ultrasound or magnetic resonance imaging. Surgical excision, when necessary, has a high success rate.

Conclusions and Relevance

Vaginal and vulvar cysts have a myriad of presentations and etiologies. A thorough understanding of these is helpful to guide decisions about further testing and management options.

Transurethral endoscopic extensive incision of complex urethral diverticula in symptomatic women: case series in a single center experience with long-term follow-up

BACKGROUND

Urethral diverticula (UD) affect 1-6% of adult women. Complex UD are rare, but can be challenging to manage. To evaluate the efficacy and safety of transurethral endoscopic extensive incision of complex UD in symptomatic women.

MATERIALS AND METHODS

We retrospectively evaluated 22 female patients with complex UD who underwent transurethral endoscopic extensive incision management in our hospital. This technique was completed by one experienced surgeon over a 7-year period between August 2012 and July 2019. The surgical technique involved placing the patient in a lithotomy position, inserting the needle electrode endoscopically, and incising the tented roof of the UD from its orifice until the entire roof had been opened widely. Outcome data included complete symptom resolution rate, imaging data, de novo stress urinary incontinence (SUI), recurrence, short-term and long-term complications. Cure was defined as decreased UD volume on postoperative magnetic resonance imaging and no post-voiding urinary retention in the diverticular cavity, with symptom resolution.

RESULTS

The initial symptom-resolution rate after 37.0 (27.0, 50.0) months' follow-up was 81.80% (18/22) and the de novo SUI rate was 13.60% (3/22). No patients required additional operations after conservative therapy. There was no symptomatic or imaging recurrence, and no short-term complications.

CONCLUSION

Transurethral endoscopic extensive incision was an effective and safe treatment for symptomatic female complex UD. Its symptom-resolution rate and de novo SUI rate might be superior to the conventional transvaginal approach. Moreover, it was less invasive and easier to conduct, with fewer complications.

A kaleidoscopic view of male urethral pathologies on 64-slice multidetector computed tomographic urethrography: A novel technique

Pathologies of the male urethra are mostly obstructive in nature and require imaging to delineate the lesion type, site, extent and associated abnormality of the urinary bladder. Contrast urethrography (CU) is the gold standard investigation for urethral assessment but has many limitations. Cross-sectional imaging is infrequently used for the evaluation of the urethra but has been gaining importance recently. Multidetector computed tomographic urethrography (MDCTU) has the capability of evaluating the entire length of a male urethra in a single setting and overcomes many technical and patient limitations of CU. Being a novel technique, most radiologists are not familiar with MDCTU and the imaging spectrum of various urethral and bladder pathologies. This pictorial review attempts to present the imaging appearance of the normal male urethra and spectrum of pathological findings, with highlights on its advantages over the CU technique.

Transvaginal management of symptomatic complex urethral diverticula by definite closure of diverticula and robust reconstruction of the urethra

Background

Management of complex urethral diverticula (UDs) is challenging not only for the ostia detection and urethral reconstruction in surgery but also for the high risk of postoperative complications. We aimed to present the experience of surgical management for UDs by transvaginal partial diverticulectomy and urethral reconstruction.

Methods

The database of medical record library was retrospectively searched for patients underwent partial diverticulectomy for symptomatic complex UDs. During the surgical procedure, the cystourethroscopy was firstly performed to locate the diverticular ostium. The surgeon exposed and opened the diverticulum along its maximum axis. The surgeon recorded the location of ostia where saline solution flowed out, when one assistant pressed suprapubic region to increase inner-pressure of bladder and urethra. We focused on definite closure of diverticular ostia and robust urethral reconstruction.

Results

The present study included 39 patients with mean age of 45 years. There were 28 patients, 23 patients and 21 patients suffering from recurrent urinary infection, frequency and urgency. Ten patients had stress urinary incontinence. All of the 39 patients had complex UDs because of U-shaped diverticula (24/39) and circumferential diverticula (15/39). Multiloculated UDs were detected in 17 out of 39 patients. During the median follow-up time of 2.0 (1.0-12.0) years, there was no case of de novo urinary incontinence. However, 2 patients still had mild stress urinary incontinence without additional treatment. At postoperative 3 months, five patients had para-urethral cysts with the size ranging from 0.3 to 0.4 cm, which were absorbed in follow-up.

Conclusions

The method of transvaginal partial diverticulectomy, definite closure of diverticular ostium, and layered reconstruction of the urethra is a feasible surgical alternative for UDs.

A 10-Year Case Series of Surgically Managed Periurethral Masses at a Single Tertiary Care Institution

OBJECTIVE

This study aimed to present the evaluation, diagnoses, and surgical management of symptomatic periurethral masses of women at an academic institution.

METHODS

This study is an institutional review board-approved retrospective case series of women who presented with a symptomatic periurethral mass and scheduled for surgery within the Department of Urology and Female Pelvic Medicine and Reconstructive Surgery over a 10-year period (October 2003-July 2014).

RESULTS

Fifty-nine women (mean age, 46 years; range, 22-73 years) were evaluated during the study period. Final pathology revealed 38 (64%) urethral diverticula and 21 (36%) from other benign etiologies. Of the 38 urethral diverticula, 2 (5%) were associated with adenocarcinoma and 4 (11%) with previous bulking agents. Of the 21 nondiverticula, there were 7 (12%) Skene duct cysts/abscesses, 3 (5%) Gartner duct cysts, 2 (3%) vaginal wall inclusion cysts, 2 (3%) bulking agents, 2 (3%) urethral polyps, and one (2%) of each of the following: leiomyoma, angiomyofibroblastoma, redundant vaginal mucosa epithelium, suture abscess, and encapsulated mesh remnant. Fifty-seven women underwent surgical excision (97%), and 2 elected observation. Most (78%) reported resolution of symptoms after excision. Of the patients surgically managed, 7% had postoperative stress urinary incontinence and 12% had persistent lower urinary tract symptoms. Of the 38 women with urethral diverticula, 17% had recurrence and were more likely to have multiple diverticula (44% vs 8%, P = 0.03).

CONCLUSION

Although urethral diverticulum was the most common cause of a periurethral mass, final pathology revealed a variety of benign diagnoses in more than one-third of cases, demonstrating the importance of a thorough investigation for accurate diagnosis.

Female Urethral Diverticula: Diagnosis, Pathology, and Surgical Outcomes at an Academic, Urban Medical Center

OBJECTIVE

To describe the outcomes of a series of women diagnosed with a urethral diverticulum at an urban tertiary care center.

METHODS

An Institutional Review Board-approved review of a series of 78 women with a diagnosis of urethral diverticulum from 2009 to 2015 was performed. Clinical, radiographic, and pathologic data was collected by retrospective review of patient medical records. Data regarding treatment selection and postoperative outcomes were collected. A multivariable logistic regression was performed to identify preoperative variables that were associated with undergoing surgical resection.

RESULTS

Of the 78 patients reviewed, the median age was 45.5 years (interquartile range (IQR) 36.0-53.8), median body mass index was 30.4 (IQR 24.8-34.4). The most common presenting symptoms included: incontinence (39%), recurrent urinary tract infections (23%), dysuria (18%), discharge (13%), dyspareunia (12%), and hematuria (9%). Additionally, 16 (21%) women were asymptomatic. Of these 78 cases, 40 underwent surgical excision (51%). Of the remaining 38, 13 were symptomatic and lost to follow-up, 23 were managed expectantly, and 2 underwent surgery after the study period. Review of the pathology results revealed that the most common finding was squamous metaplasia (31%). There was 1 adenocarcinoma in the series (2.5%). Of the 40 patients who had surgery, 3 (7.5%) had a diverticular recurrence and 5 (12.5%) developed stress urinary incontinence. The median follow-up was 7.5 months (IQR 1-20.25 months).

CONCLUSION

A variety of presenting symptoms existed for women with a urethral diverticulum seeking medical care at an urban medical center. When controlling for age, body mass index, and race, the presence of preoperative symptoms was associated with undergoing surgical resection.

Preoperative Transurethral Contrast-Enhanced Ultrasonography in the Diagnosis of Female Urethral Diverticula

OBJECTIVES

To explore the value of transurethral contrast-enhanced ultrasonography (CEUS) in the diagnosis and evaluation of female urethral diverticula.

METHODS

This study prospectively enrolled 35 women with periurethral cystic lesions, who underwent preoperative transurethral CEUS at our single center between April 2015 and May 2017. The diagnosis of a urethral diverticulum was made by the detection of microbubbles inside the lesion. Data regarding the structure and ostia of the diverticula were collected and then compared with intraoperative findings.

RESULTS

The median (interquartile range) age of the 35 patients was 43 (34-48) years. The most common manifestations were dysuria (43%) and palpable masses (40%). On transurethral CEUS, 20 patients were found to have urethral diverticula. The diverticula involved the proximal, mid, and distal urethra with different sizes. The shapes of the diverticula were simple in 4 patients (20%), U shaped in 8 patients (40%), and circumferential in 8 patients (40%). A total of 23 ostia were identified. Seventeen women (85%) had 1 ostium, and 3 women (15%) had 2 ostia. Twenty-one diverticular ostia (91%) were located from the 3- to 9-o'clock positions. The median (interquartile range) distance from the diverticular ostia to the bladder neck was 20 (9-31) mm. During surgery, all US presentations correlated well with surgical findings, and 21 patients were confirmed to have urethral diverticula. The transurethral CEUS had sensitivity of 95% and specificity of 100%.

CONCLUSIONS

Transurethral CEUS is an effective method for identifying the structure and ostium of female urethral diverticula. It may have a potential role in preoperative planning and surgical management.

Female urethral diverticula: An elusive pathology that can cause significant problems

Female urethral diverticula are a rare pathology, although thought to be under-diagnosed. They can present with a large variety of symptoms, and can be complicated by stones or malignancy. Magnetic resonance imaging is widely accepted to be the best form of imaging for this condition, although voiding cystourethrogram studies are helpful in providing information on bladder function. Symptomatic patients should be treated surgically through urethral diverticulectomy.

Level of evidence: Not applicable for this multicentre audit.

Female Urethral Diverticulum: Presentation, Diagnosis, and Predictors of Outcomes After Surgery

INTRODUCTION AND HYPOTHESIS

To report on clinical presentation, diagnosis, and outcomes after treatment of female urethral diverticulum (UD).

METHODS

Using a record linkage system, women with a new diagnosis of UD at Mayo Clinic from January 1, 1980, through December 31, 2011, were identified. The presenting symptoms, clinical characteristics, diagnosis, and management of women presenting with UD were recorded. Outcomes after surgery were assessed using survival analysis. All statistical analyses were 2-sided and P values less than 0.05 were considered significant. Statistical analysis was done using SAS version 9.2 and JMP version 9.0 (SAS Institute Inc.).

RESULTS

A total of 164 cases were identified. Median age at diagnosis was 46 years (range, 21-83). The most common presenting symptom was recurrent urinary tract infection (98, 59.8%), followed by urinary incontinence (81, 49.4%), dysuria (62, 37.8%), dyspareunia (37, 22.6%), and hematuria (15, 9.1%). Examination revealed vaginal mass in 55 (33.5%) of the women. A significant trend was noted toward an increase in use of both magnetic resonance imaging and computed tomography (P < 0.001) along with a progressive decrease in use of urethrogram (P < 0.001) for diagnosis of UD over the years. Among 114 women who underwent surgical treatment for UD, 14(12.3%) women presented with recurrent UD and the 5-year recurrence rate after surgery for UD was 23.4% (95% confidence interval, 13.9-37.0) and a reoperation rate of 17.0% (95% confidence interval, 8.8-30.2) at 5 years.

CONCLUSIONS

Female UD is a rare and unique condition. Clinical presentation is usually nonspecific, and magnetic resonance imaging is commonly used for confirming the diagnosis. Recurrence is not uncommon, and repeat surgical intervention might be needed.

Sonovaginography: A Useful Technique in the Assessment of the Lower Genital Tract

Conventional sonographic evaluation of the cervix and vagina is compromised by inattention, poor subject contrast, and obscuring artifacts. We describe a technique involving distention of the vaginal canal and fornices with ultrasound gel, providing an acoustic window for improved definition of the cervix and vagina. This exam is usually performed in concert with transvaginal sonography, but a transabdominal or transperineal approach may be more useful in selected scenarios. A wide variety of formerly sonographically inconspicuous conditions are demonstrable with this technique, many of which were undetected or inadequately characterized on the physical exam. Cervical polyps were the most commonly seen abnormality.

Three-Dimensional Imaging of Urethral Stricture Disease and Urethral Pathology for Operative Planning

Diagnosing urethral pathology can prove difficult, as clinically, the presentation is often nonspecific and may be suggestive of multiple etiologies. Therefore, detailed and accurate urethral imaging in both males and females is critical. Since the early 1900s, conventional imaging studies including RUG and VCUG, with adjunct cystourethroscopy, have remained the gold standard diagnostic techniques to evaluate urethral pathology. However, limitations of conventional imaging have generated interest in finding alternative imaging modalities with comparable, if not superior, diagnostic accuracy, the goal being a more complete assessment of urethral pathology and anatomy that would allow for appropriate surgical planning. Imaging modalities with three-dimensional (3D) capabilities may provide more comprehensive information regarding urethral diseases through a more detailed illustration of periurethral soft tissue structures. Whether or not these imaging modalities will replace conventional studies is unclear, though there is an increasing body of literature that support their use.

Urethral Diverticulum in Women: Retrospective Case Series

PURPOSE

We present the management of 17 cases of urethral diverticulum in our department. We describe the various clinical presentations of urethral diverticulum, which may mimic other pelvic floor disorders and result in diagnostic delay.

MATERIALS AND METHODS

We reviewed 17 cases of urethral diverticulum presented to the urogynaecology department between January 2006 and February 2011 retrospectively. Patient demographics, history, clinical evaluation, diagnostic modalities, and management plans were reviewed. All of them underwent Magnetic Resonance Imaging (MRI) prior to the procedure.

RESULTS

The mean time from onset of symptoms to diagnosis of a urethral diverticulum was 24 ± 5.6 months. MRI identified the urethral diverticulum in all cases while voiding cystourethrography confirmed the diagnosis in 4 (23.5 %). They have been divided into two groups: Group A, (4-6 mm largest axis range) 5 (29.41 %) cases; Group B, (6-33 mm largest axis range) 12(70.59 %). All in Group A were symptomatic with recurrent Urinary Tract Infection (UTI), whereas only 8 (66.6 %) in Group B were symptomatic. Transvaginal diverticulectomy was done in 12 women who were symptomatic (70.5 %). Postoperative evaluation revealed complete resolution of symptoms, such as recurrent UTI, dysuria, and dyspareunia. One patient was unsure of surgery, while conservative approach was opted for asymptomatic patients 4 (23.5 %). The use of preoperative MRI altered the management in 2 (11.7 %) women.

CONCLUSION

The diagnosis of urethral diverticulum should be considered in women with recurrent UTI, dysuria, dyspareunia, and irritative voiding symptoms not responding to conservative therapy.

Risk factors of urethral diverticula in male patients with spinal cord injury

STUDY DESIGN

A case-control study in a series of 55 males with urethral diverticula (UD) and their correspondent control, matched by age and time of radiological assessments.

OBJECTIVES

To evaluate the risk factors to develop UD in males with spinal cord injury (SCI) and the place in the urethra where they are, most commonly, allocated.

SETTING

Toledo, Spain.

METHODS

Clinical histories and urodynamic studies, of all patients, were reviewed. The study was completed with a telephone survey according to an established protocol.

RESULTS

The univariate analysis study showed the following risk factors: the age of onset of the spinal injury, the sphincterotomy procedure, personal history of lower urinary tract infections (LUTIs) and the chronic need of either indwelling catheter (IC) or the external condom drainage (ECD). Regarding the location of the UD, we have found the stress urinary incontinence as the only risk factor to develop UD in the prostatic urethra.On the other hand, we can conclude that the sphincterotomy, the ECD, the personal history of LUTIs and the detrusor external sphincter dyssynergia seem to be risk factors to develop diverticula in the bulbo-membranous urethra. Finally, we could point out the IC as the only risk factor for penile UD. Multivariate analysis showed that all of these risk factors were independent among them except the age of the onset of the injury and the ECD for UD in the bulbo-membranous urethra.

CONCLUSION

According to our study, there is evidence of some specific risk factors for the development of UD in male patients with SCI, and therefore we should adopt the appropriate preventive measures to prevent them.

Preoperative CT voiding cystourethrography using 16-multidetector CT in female urethral diverticulum

Purpose

To evaluate the clinical usefulness of preoperative CT voiding cystourethrography (CT-VCUG) using 16-multidetector computed tomography for female urethral diverticula.

Materials and Methods

Preoperative CT-VCUG was performed in 15 consecutive patients who underwent urethral diverticulectomy from May 2004 to December 2012. The result of preoperative cystourethroscopy and surgical findings were recorded by a single surgeon and CT-VCUG findings including the location of osita were retrospectively reviewed by another urologist who was blinded to the surgical finding. The location of the ostium detected on CT-VCUG was compared descriptively with the intraoperative surgical and preoperative cystourethroscopic findings.

Results

A total of 14 consecutive patients who underwent preoperative CT-VCUG and urethral diverticulectomy were included in the analysis. Ostia were detected on CT-VCUG in all cases, whereas ostia were identified in 10 patients (71.4%) by cystourethroscopy. Ostia were located between the 4 and 8 o’clock direction. Mean distance from the bladder neck to the ostium was 24.2 mm. Circumferential and horseshoe shaped diverticula were observed in 6 and 4 patients, respectively. The surgical findings correlated well with the CT findings.

Conclusions

Preoperative CT-VCUG can be useful in identifying the ostia of urethral diverticula in patients scheduled for urethral diverticulectomy and can provide structural information, useful to establish surgical strategy.

Pathologic Outcomes following Urethral Diverticulectomy in Women

Purpose. Although most urethral diverticula in women are benign, there is a subset of patients who develop malignant changes. Limited studies report the pathologic findings associated with this relatively rare entity. We describe the clinicopathologic findings of women who underwent urethral diverticulectomy. Methods. A consecutive series of 29 women who underwent surgical resection of a urethral diverticulum were identified between 1992 and 2013. Clinical and radiographic data was collected by retrospective review of patient medical records. All pathological slides were rereviewed by a single urologic pathologist. Results. Of the 14 women with clinical data, 9 (64%) presented with urgency, 7 (50%) with urinary frequency, 3 (21%) with urinary incontinence, and 3 (21%) with dysuria. Mean diverticular size was 2.3 (±1.4) cm. Although one patient (3%) had invasive adenocarcinoma on final pathology, the remaining 28 cases (97%) demonstrated benign features. The most common findings were inflammation (55%) and nephrogenic adenoma (21%). Conclusions. Although most urethral diverticula in women are benign, there is a subset of patients who develop malignancy in association with the diverticulum. In this series, 97% of cases had a benign histology. These findings are important when counseling patients regarding treatment options.

Evaluation of vaginal cysts and masses by 3-dimensional endovaginal and endoanal sonography

The purpose of this pictorial essay is to describe the utility of 3-dimensional endovaginal and endoanal sonography in the assessment of vulvovaginal cysts and masses. It is accepted that compared with transabdominal pelvic sonography, transvaginal end-fire sonography provides improved resolution for visualization of female reproductive organs with fewer artifacts. To visualize the structures that are located in or lateral to the vaginal canal, side-fire 3-dimensional endovaginal or endoanal sonography can be used. This special technique has the advantage of maintaining the spatial anatomic relationship of any abnormality in the vagina.

Incidence of female urethral diverticulum: a population-based analysis and literature review

INTRODUCTION AND HYPOTHESIS

Urethral diverticulum (UD) is a protrusion of the urethra through the periurethral fascia. We aimed to determine the population-based incidence of female UD.

METHODS

Using the records-linkage system of the Rochester Epidemiology Project (REP), we identified women 18 years and older with a new diagnosis of UD in Olmsted County, Minnesota, USA, from 1 January 1980, through 31 December 2011. We also identified cases meeting the same criteria diagnosed at Mayo Clinic, regardless of county of residency. Incidence rates were calculated and trends for changes in incidence over time were tested. We conducted a systematic search of the MEDLINE, EMBASE, Cochrane Systematic Reviews, CENTRAL, Web of Science, and Scopus databases from inception through 30 March 2013, to identify published reports of UD incidence or prevalence.

RESULTS

We identified 164 incidence cases, including 26 women residing in Olmsted County. Age-adjusted annual incidence of UD in Olmsted County was 17.9 per 1,000,000 women (<0.02 %) per year (95 % CI, 10.9-24.9). We observed a trend toward increased incidence during the past 3 decades (P = 0.03). In our literature review, only 7 studies included an estimate of incidence or prevalence of UD; these estimates ranged from 6.4 per 1,000,000 per year (<0.01 %) having surgical intervention related to UD to a 4.7 % rate of UD diagnosed in asymptomatic women admitted for gynecological or obstetric issues.

CONCLUSIONS

In this population-based study, female UD was a rare disease, affecting fewer than 20 per 1,000,000 women (<0.02 %) per year.

Use of ultrasound in the clinical evaluation of women following colpocleisis

OBJECTIVE

To assess the role of transperineal ultrasound in the postoperative evaluation of patients undergoing colpocleisis.

METHODS

Patients who underwent colpocleisis between July 2009 and January 2011 completed the pelvic floor distress inventory questionnaire (PFDI-20) and underwent pelvic organ prolapse quantification (POP-Q) examination and four-dimensional (4D) transperineal ultrasound. Volumes were analyzed offline for assessment of pelvic organ descent, levator hiatal dimensions, levator avulsion trauma and the location of the colpocleisis scar.

RESULTS

The study included 16 women, of mean ± SD age 75.7 ± 2.9 years, median body mass index 28 (range, 21-32) kg/m2 and median parity 2 (range, 0-5); one woman was nulliparous. Nine (56.2%) women were posthysterectomy. The median interval from surgery to ultrasound examination was 6.5 (range, 2-19) months. Most patients did not have symptoms of prolapse. The median pelvic organ prolapse distress inventory (POPDI-6) score was 37.5 (range, 0-75) and the median postoperative clinical POP-Q stage was 1 (range, 0-2). Ultrasound demonstrated clear visualization in all patients. Ten had avulsion defects (six were bilateral). Ultrasound estimated greater prolapse descent for all compartments when compared with the clinical examination. However, this difference was significant for anterior and posterior descent, but not for apical descent. In two women urethral diverticulum was detected on ultrasound; it was neither symptomatic nor clinically apparent.

CONCLUSIONS

4D transperineal ultrasound seems to be a potentially effective tool for the evaluation of vaginal anatomic and functional changes following colpocleisis surgery. Future investigation of the association between ultrasound findings and patients' subjective symptoms in a larger cohort is warranted.

Urethral diverticulum mimicking anterior vaginal wall prolapse: case report

Unfamiliar cystic formations may develop in the anterior vaginal wall. In view of the close proximity of the anterior vagina to the urethra and bladder, it is important that management of such masses is carefully planned after detailed examination and investigation. Herein, we present the case of an unusual painful swelling in the anterior vaginal wall that was first diagnosed as vaginal wall prolapse. Despite thorough preoperative investigations, the origin of the mass as a urethral diverticulum was confirmed only at pathologic analysis.

Imaging pelvic floor disorders: trend toward comprehensive MRI

OBJECTIVE

The purpose of this article is to review the relevant anatomy and sonographic, fluoroscopic, and MRI options for evaluating patients with pelvic floor disorders.

CONCLUSION

Disorders of the pelvic floor are a heterogeneous and complex group of problems. Imaging can help elucidate the presence and extent of pelvic floor abnormalities. MRI is particularly well suited for global pelvic floor assessment including pelvic organ prolapse, defecatory function, and pelvic floor support structure integrity.

Female urethral diverticula

PURPOSE OF REVIEW

The purpose of this review is to summarize the presentation, investigation and management of female urethral diverticulum, a condition often overlooked and frequently misdiagnosed. Hopefully, greater awareness will lead to more timely diagnosis and appropriate treatment.

RECENT FINDINGS

Recently there has been considerable emphasis on correctly identifying this condition. Newer imaging modalities such as magnetic resonance imaging are now widely available and urethral diverticula that previously were unrecognized, such as noncommunicating diverticula, can now be more easily detected. The character of the diverticula can be accurately determined with appropriate imaging and this can lead to improved preoperative planning.

SUMMARY

Traditional contrast studies are now being superseded by advanced cross-sectional imaging such as magnetic resonance imaging and even virtual computed tomography urethroscopy. These provide much greater tissue definition; however, very few studies directly compare the myriad of contrast-based, ultrasonographic and cross-sectional investigations that are available. Therefore, although the condition is eminently treatable, there remains little standardization in the investigation of this condition. The greatest single improvement, however, in management would come from more widespread clinical awareness of the condition and its presentation.