Value of endometrial thickness measurement for diagnosing focal intrauterine pathology in women without abnormal uterine bleeding

Endometrial Abnormalities: Correlation Between Different Diagnostic Modalities

OBJECTIVES

We sought to evaluate the diagnostic accuracy of transvaginal ultrasound (TVUS) saline infusion sonohysterogram (SIS), and hysteroscopy for diagnosing endometrial abnormalities and their correlation with histological findings. In addition, we sought to validate the subsistence of a more subtle abnormality called "redundant endometrium" (RE).

METHODS

Retrospective cohort study of patients presenting with infertility and diagnosed with endometrial abnormalities who underwent hysteroscopy and pathology evaluation. Each patient underwent TVUS at the first visit regardless of the cycle phase, followed by SIS during proliferative phase, and then hysteroscopy, which was performed when abnormal SIS findings were diagnosed. Endometrial abnormalities were categorized as polyps (EP), RE, or normal. Frequencies of the abnormalities were recorded for the 3 imaging modalities and their sensitivity, specificity, positive predictive value, and negative predictive value were calculated for each.

RESULTS

A total of 105 TVUS and 73 SIS were performed. Because of the frequent association of EP with RE, when all endometrial pathologies were combined, the three diagnostic modalities showed high sensitivity (TVUS 88.9%, SIS 100%, hysteroscopy 82.9%, respectively), but they also showed low specificity (TVUS 56.7%, SIS 56.1%, hysteroscopy 58.2%, respectively). Pathological evaluation showed isolated RE (26 cases), to harbor polyps (19.2%), disordered endometrium (19.2%), and complex atypical hyperplasia (3.8%).

CONCLUSIONS

The three diagnostic modalities showed high sensitivity in diagnosing endometrial abnormalities. We identified RE as an independent endometrial abnormality. Benign endometrium is the predominant histology in RE, however, a small proportion harbors endometrial hyperplasia. Based on these results, we advocate further evaluation when this condition is diagnosed with TVUS, or SIS.

Ultrasound features of endometrial pathology in women without abnormal uterine bleeding: results from the International Endometrial Tumor Analysis study (IETA3)

OBJECTIVES

The primary aim of this study was to describe the ultrasound features of various endometrial and other intracavitary pathologies in women without abnormal uterine bleeding (AUB) using the International Endometrial Tumor Analysis (IETA) terminology. The secondary aim was to compare our findings with published data on women with AUB.

METHODS

This was a prospective observational study of women presenting at one of seven centers specialized in gynecological ultrasonography, from 2011 until 2018, for indications unrelated to AUB. All patients underwent transvaginal ultrasound using the IETA examination and measurement techniques. Ultrasonography was performed as part of routine gynecological examination or follow-up of non-endometrial pathology, or as part of the work-up before undergoing treatment for infertility, uterine prolapse or ovarian pathology. Ultrasound findings were described using the IETA terminology. Endometrial sampling was performed after the ultrasound scan. The histological endpoints were endometrial atrophy, proliferative or secretory endometrium, endometrial hyperplasia without atypia, endometrial polyp, intracavitary leiomyoma, endometrial intraepithelial neoplasia (EIN), endometrial cancer (EC) and insufficient tissue. The findings in our cohort of women without AUB were compared with those in a published cohort of women with AUB who were examined with transvaginal ultrasound between 2012 and 2015 using the same IETA examination technique and terminology.

RESULTS

In this study (IETA3), we included 1745 women without AUB who underwent a standardized transvaginal ultrasound examination followed by either endometrial sampling with histological diagnosis (n = 1537) or at least 1 year of clinical and ultrasound follow-up (n = 208). Of these, 858 (49.2%) women were premenopausal and 887 (50.8%) were postmenopausal. Histology showed the presence of EC and/or EIN in 29 (1.7%) women, endometrial polyps in 1028 (58.9%), intracavitary myomas in 66 (3.8%), proliferative or secretory changes or hyperplasia without atypia in 144 (8.3%), endometrial atrophy in 265 (15.2%) and insufficient tissue in five (0.3%). Most cases of EC or EIN (25/29 (86.2%)) were diagnosed after menopause. The mean endometrial thickness in women with EC or EIN was 11.2 mm (95% CI, 8.9-13.6 mm), being on average 2.4 mm (95% CI, 0.3-4.6 mm) thicker than their benign counterparts. Women with malignant endometrial pathology manifested more frequently non-uniform echogenicity (22/29 (75.9%)) than did those with benign endometrial pathology (929/1716 (54.1%)) (difference, +21.8% (95% CI, +4.2% to +39.2%)). Moderate to abundant vascularization (color score 3-4) was seen in 31.0% (9/29) of cases with EC or EIN compared with 12.8% (220/1716) of those with a benign outcome (difference, +18.2% (95% CI, -0.5% to +36.9%)). Multiple multifocal vessels were recorded in 24.1% (7/29) women with EC or EIN vs 4.0% (68/1716) of those with a benign outcome (difference, +20.2% (95% CI, +4.6% to +35.7%)). A regular endometrial-myometrial junction was seen less frequently in women with EC or EIN (19/29 (65.5%)) vs those with a benign outcome (1412/1716 (82.3%)) (difference, -16.8% (95% CI, -34.2% to +0.6%)). In women with endometrial polyps without AUB, a single dominant vessel was the most frequent vascular pattern (666/1028 (64.8%)). In women with EC, both in those with and those without AUB, the endometrium usually manifested heterogeneous echogenicity, but the endometrium was on average 8.6 mm (95% CI, 5.2-12.0 mm) thinner and less intensely vascularized (color score 3-4: difference, -26.8% (95% CI, -52.2% to -1.3%)) in women without compared to those with AUB. In both pre- and postmenopausal women, asymptomatic endometrial polyps were associated with a thinner endometrium, and they manifested more frequently a bright edge, a regular endometrial-myometrial junction and a single dominant vessel than did polyps in symptomatic women, and they were less intensely vascularized.

CONCLUSIONS

We describe the typical ultrasound features of EC, polyps and other intracavitary histologies using IETA terminology in women without AUB. Our findings suggest that the presence of asymptomatic polyps or endometrial malignancy may be accompanied by thinner and less intensely vascularized endometria than their symptomatic counterparts. © 2022 International Society of Ultrasound in Obstetrics and Gynecology.

Comparison of three biopsy forceps for hysteroscopic endometrial biopsy in postmenopausal patients (HYGREB-1): A multicenter, single-blind randomized clinical trial

OBJECTIVE

To compare three types of biopsy forceps for hysteroscopic endometrial biopsy in postmenopausal women.

METHODS

Postmenopausal women undergoing operative hysteroscopy with endometrial biopsy for abnormal uterine bleeding or endometrial thickness (≥5 mm) were included. Operative hysteroscopy with endometrial biopsy was performed by hysteroscopic forceps. Women were randomized (1:1:1 ratio) in three groups and allocated to undergo endometrial biopsy by hysteroscopy using spoon, alligator, or snake forceps.

RESULTS

Seventy-five women were included in the study, 25 in each group. The duration of the biopsy was comparable between the three groups (P = 0.334) with a median of 180 seconds (range 20-480 seconds). No differences were observed about the number of attempts (P = 0.602), the use of another instrument (P = 0.276), and the biopsy appropriateness (P = 0.592). The spoon forceps group reported higher levels of pain compared to the alligator and snake forceps groups (P < 0.001). The spoon forceps received significantly lower scores by the operator compared to the alligator and snake forceps (P < 0.001). The alligator and snake forceps reported wider biopsy than the spoon forceps (P < 0.001).

CONCLUSION

Snake and alligator hysteroscopic forceps may be considered the first choice to perform an endometrial biopsy in postmenopausal women. ClinicalTrials.gov: NCT03427957.

Preoperative assessment of endometrial cancer

Endometrial cancer (EC), the most common among gynaecological malignancies occurs predominantly after the menopause. The diagnosis is most commonly (in about 75-80%) set up at early stage when surgical therapy and if necessary postoperative radiotherapy results in an excellent prognosis, with a 90-95% 5-year overall survival (OS) and a locoregional recurrence rates of 4-8%. Accurate preoperative assessment of the lymph nodes would ideally identify those patients with advanced stage disease, who might benefit from more extensive surgical procedures and adjuvant therapies. magnetic resonance imaging (MRI), hysteroscopic excisional biopsy (HEB) and high resolution 2D or 3D ultrasound performed by expert operator are considered to add valuable information for preoperative staging of EC. The use of biomarkers could be beneficial in decreasing inter-observer variability between the histology of the diagnostic specimen and the final operative sample, as well as to avoid overtreatment in a part of the high-grade tumors with excellent prognosis. The goal of surgical management of EC is to remove the primary tumor and to identify definite prognostic factors to determine whether adjuvant therapy is required. Extended surgery, including para-aortic lymphadenectomy has a significant morbidity, and with the future selection of cases it can be safely avoided, we can decrease complications without compromising oncological safety. In the future, the importance of hysteroscopy guided sampling may increase to gain a representative sample for biomarker detection.

Immunohistochemical expression of hormone receptors, Ki-67, endoglin (CD105), claudins 3 and 4, MMP-2 and -9 in endometrial polyps and endometrial cancer type I

Objective

The aim of this study was to investigate the malignant potential of endometrial polyps (EP) by assessing the immunoexpressions of both estrogen receptor (ER) and progesterone receptor (PR), Ki-67 cell proliferation index, neovascularization network (endoglin – CD105), cellular adhesion molecules (claudins 3 and 4), and extracellular matrix proteins (MMP-2 and -9) in both EP and endometrioid adenocarcinoma (type I) in comparison with the normal endometrium.

Study design

This is a cross-sectional comparative study. Patients were identified from the database of Botucatu Medical School, São Paulo State University (BMS-UNESP) Clinical Pathology Laboratory.

Setting

The study was conducted using a convenience sample of patients attending the Sectors of Gynecologic Endoscopy and Family Planning and Gynecologic Oncology of the Department of Gynecology and Obstetrics of BMS-UNESP, Brazil.

Patients

A total of 90 women were allocated into the following three groups: EP without atypia (EP, n=30), endometrioid endometrial cancer (EC, n=30), and normal endometrium (control, n=30).

Methods

Epidemiological and clinical data were obtained by reviewing medical records. Adenocarcinoma and control cases were assessed using the tissue microarray technique. The immunoexpressions of ER, PR, Ki-67, CD105, claudins 3 and 4, and MMP-2 and -9 were assessed in paraffin blocks containing sections of the largest polyploid lesion fragment and tissue microarray recipient blocks.

Major results

Compared to the control group, significant differences in the expression of ER (P<0.001), PR (P<0.05), Ki-67 (P<0.001), CD105 (P<0.001), and claudin 3 (P<0.001) were observed in EP and EC. No significant differences were found between EP and EC (P≥0.05). MMP-2 and -9 expression were nearly absent in all groups.

Conclusion

The malignant potential of EP could not be determined through the immunohistochemical parameters used in this study. No MMP-2 or -9 expression was observed in any endometrial tissue sample. Further studies are necessary for a better understanding of the biomolecular mechanisms underlying endometrial carcinogenesis.

The Role of Hysteroscopy in Evaluating Postmenopausal Asymptomatic Women with Thickened Endometrium

Backgrounds and Aims:

This study aims to compare hysteroscopic and histological findings in asymptomatic postmenopausal patients with thickened endometrium.

Materials and Methods:

A retrospective study involving case records of 295 asymptomatic postmenopausal women with a thickened endometrium >5 mm diagnosed at transvaginal ultrasound (TVS). Patients (women) underwent hysteroscopy with biopsy between 2009 and 2015, and they were followed up at National Cancer Institute of Bari and at University Hospital of Pisa. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of hysteroscopy were evaluated.

Results:

Inclusion criteria were TVS, hysteroscopy, and endometrial biopsy. When the hysteroscopic findings were normal, a sensitivity of 100%, specificity of 98.6%, PPV of 95.2%, and NPV of 100% were achieved. For polyps and myomas, we found 100%, 98.7%, 99.5%, and 100%, respectively. In case of endometrial hyperplasia, a sensitivity of 66.7%, a specificity of 100%, a PPV of 100%, and a NPV of 98.1% were achieved. For endometrial cancer hysteroscopy, sensitivity, specificity, PPV, and NPV were 100%, 99.6%, 75%, and 100%, respectively.

Conclusions:

Hysteroscopy allows an accurate diagnosis in benign endometrial pathology and suspect of malignant endometrial pathology in postmenopausal women with thickened endometrium.

Current strategies in the diagnosis of endometrial cancer

PURPOSE

Endometrial cancer is the most common gynecological malignancy in developed countries. There are no uniform recommendations for endometrial cancer screening in the general population. Therefore, it is of paramount importance that the primary physician profoundly understands, and is familiar with the methods for prevention and early detection of endometrial cancer. The aim of this review is to provide the primary physician with a toolbox to reach these goals.

METHODS

We performed a systemic review to summarize the current strategies to diagnose and prevent endometrial cancer. Many published articles from the last years were identified and included.

RESULTS

A systematic review that summarizes the important subjects in the diagnosis and prevention of endometrial cancer.

CONCLUSION

Maintaining a high index of suspicion and obtaining endometrial biopsies from all suspected patients is the key for achieving a timely diagnosis.

Hysteroscopy: A necessary method for detecting uterine pathologies in post-menopausal women with abnormal uterine bleeding or increased endometrial thickness

Objective:

To investigate the histologic and hysteroscopic findings of post-menopausal women with uterine bleeding and asymptomatic women with increased endometrial thickness equal or more than 5 mm.

Materials and Methods:

This cross-sectional study was performed between May 2014 and June 2015 on 110 post-menopausal women aged 40-82 years. The women were divided into two groups: Women with abnormal uterine bleeding (AUB group) and asymptomatic women with increased endometrial thickness (asymptomatic group).

Results:

Among the participants, 67 women had AUB and 43 women were asymptomatic. In the AUB group sensitivity, specificity, and positive and negative predictive values of hysteroscopy for normal findings were 98%, 100%, 100% and 90%, respectively. In the asymptomatic group, the same parameters were 98%, 100%, 100% and 85%, respectively. The sensitivity, specificity, and positive and negative predictive values of hysteroscopy for polyps and myomas were 100%. Also, the sensitivity, specificity, and positive and negative predictive values were 100% in hyperplasia cases found during hysteroscopy in both groups.

Conclusion:

Increased endometrial thickness in postmenopausal women with or without AUB is mostly due to benign lesions such as polyps and submucosal myomas. Hysteroscopy is a safe and reliable method for evaluating and treating these lesions.

Structured imaging technique in the gynecologic office for the diagnosis of abnormal uterine bleeding

The aim in the diagnosis of abnormal uterine bleeding (AUB) is to identify the bleeding cause, which can be classified by the PALM-COEIN (Polyp, Adenomyosis, Leiomyoma, Malignancy (and hyperplasia), Coagulopathy, Ovulatory disorders, Endometrial, Iatrogenic and Not otherwise classified) classification system. In a gynecologic setting, the first step is most often to identify structural abnormalities (PALM causes). Common diagnostic options for the identification of the PALM include ultrasonography, endometrial sampling, and hysteroscopy. These options alone or in combination are sufficient for the diagnosis of most women with AUB. Contrast sonography with saline or gel infusion, three-dimensional ultrasonography, and magnetic resonance imaging may be included.

AIM

The aim of this article is to describe how a simple structured transvaginal ultrasound can be performed and implemented in the common gynecologic practice to simplify the diagnosis of AUB and determine when additional invasive investigations are required. Structured transvaginal ultrasound for the identification of the most common endometrial and myometrial abnormalities and the most common ultrasound features are described. Moreover, situations where magnetic resonance imaging may be included are described. This article proposes a diagnostic setup in premenopausal women for the classification of AUB according to the PALM-COEIN system. Moreover, a future diagnostic setup for fast-track identification of endometrial cancer in postmenopausal women based on a structured evaluation of the endometrium is described.

Diagnostic value of sonography for detecting endometrial pathologies in postmenopausal women with and without bleeding

PURPOSE

To investigate the diagnostic value of endometrial thickness measurement on sonography in predicting endometrial pathologies in postmenopausal women with vaginal bleeding and in those with asymptomatic thickened endometrium.

METHODS

Six hundred two postmenopausal women with vaginal bleeding or asymptomatic thickened endometrium were evaluated in this study. Two hundred seventy-four women with postmenopausal bleeding regardless of endometrial thickness (group 1: symptomatic) and 328 women with an incidental finding of thickened endometrium (≥5 mm) without bleeding (group 2: asymptomatic) underwent endometrial biopsy for histopathologic examination. The receiver operating characteristics curves of endometrial thickness measurement for prediction of endometrial pathologies were analyzed.

RESULTS

Endometrial carcinoma was detected in eight women (2.9%) in group 1 and in three (0.9%) in group 2. The best cutoff point for endometrial thickness in predicting endometrial carcinoma in group 1 was 8.2 mm, which provided 75% sensitivity (95% confidence interval [CI], 40.9-92.9%) and 74% specificity (95% CI, 68-78.5%); area under the receiver operating characteristics curve (AUC), 0.88; 95% CI, 0.76-1.00%; p = 0.0001. In group 2, the AUC was 0.76 (95% CI, 0.46-1.00; p = 0.114); the evidence was inconclusive as to the relationship between endometrial thickness and malignancy. For the prediction of polyps, the AUCs of endometrial thickness were 0.77 for group 1 (95% CI, 0.71-0.83%; p = 0.0001) and 0.61 for group 2 (95% CI, 0.54-0.67%; p = 0.002).

CONCLUSIONS

Sonographically determined endometrial thickness measurement shows high diagnostic performance for detection of endometrial cancer in symptomatic postmenopausal women at the optimal cutoff thickness of approximately 8 mm, although the evidence supporting the use of sonography for predicting malignancy in asymptomatic women is inconclusive. For polyp detection, this technique shows moderate diagnostic ability in symptomatic women, but its predictive value is low in asymptomatic women. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 44:339-346, 2016.

Two-Dimensional Sonographic Evaluation of Endometrial Polyps - Parameters That Are Reassuring

AIMS

To assess intra-endometrial lesions according to five two-dimensional sonographic parameters for predicting malignancy.

MATERIAL AND METHODS

This is a retrospective analysis of stored digital images from consecutive pathological reports of patients with benign endometrial polyps and stage 1 endometrial carcinoma. Five sonographic parameters were evaluated: heterogeneous or complex echogenicity of the lesion, presence of a 'bright edge sign,' regular endometrial-myometrial junction, the presence of a normal endometrium adjacent to the lesion, and detection of small intralesional cysts. The sensitivity, specificity, PPV, and NPV of these parameters were calculated, as well as combinations of pairs of parameters.

RESULTS

Seventy-nine patients were eligible for the current study, 26 with benign endometrial polyps and 53 with stage 1 endometrial carcinoma. The sonographic appearance of numerous small intralesional cysts (cystic formation) was highly related to benign polyp; the presence of a lesion with heterogeneous echogenicity had sensitivity and specificity for malignancy of 63.5 and 88.5%, respectively.

CONCLUSIONS

We have shown that asymptomatic endometrial lesions, which are homogenous, have bright edges, and small intralesional cysts are likely to be benign Determining these parameters during sonographic evaluation can assist in identifying patients who will benefit from a follow-up strategy instead of an unnecessary surgical intervention.

Endometrial evaluation with transvaginal ultrasonography for the screening of endometrial hyperplasia or cancer in premenopausal and perimenopausal women

Objective

The aim of our study is to determine clinical factors and sonographic findings associated with endometrial hyperplasia or cancer (EH+) in premenopausal and perimenopausal women.

Methods

A total of 14,340 transvaginal ultrasonography examinations of 9,888 healthy premenopausal and perimenopausal women were included in this retrospective study. One hundred sixty-two subjects underwent endometrial biopsy based on abnormal uterine bleeding (AUB), sonographic endometrial abnormalities (thickened endometrium, endometrial mass, or endometrial stripe abnormality), or both. The clinical factors and sonographic endometrial abnormalities were evaluated with regard to EH+.

Results

Histologically verified EH+ was found in fourteen subjects (8.6%); ten cases of endometrial hyperplasia (EH) without atypia, three cases of EH with atypia (AEH), and one case of endometrial cancer. Neither clinical factors nor AUB were associated with EH+ (P=0.32) or AEH+ (P=0.72). Of sonographic findings, endometrial stripe abnormality was significantly associated with EH+ (P=0.003) and marginally associated with AEH+ (P=0.05), but a thickened endometrium was not associated with EH+ (P=0.43).

Conclusion

Endometrial stripe abnormality is a significant factor to predict EH+ in healthy premenopausal and perimenopausal women with and without AUB. However, simple measurement of endometrial thickness has a limited role in this capacity.

What does a diagnostic label of 'polycystic ovary syndrome' really mean in adolescence? A review of current practice recommendations

Polycystic ovary syndrome (PCOS) is the most common female endocrine disorder, with many women initially presenting during adolescence. Diagnosis during this period is particularly challenging, yet many emphasize the importance of an early diagnosis given the long-term metabolic and reproductive health consequences associated with the syndrome. The objective of this study was to review the current literature to determine whether the diagnostic label 'PCOS' is necessary to effectively manage adolescent girls presenting with features of the syndrome. A literature search was conducted (PubMed, Medline, Informit Health and the Cochrane Database of Systematic Reviews) identifying papers addressing the diagnosis and management of PCOS during adolescence. Articles were selected based on date of publication, relevance of material and the quality of evidence presented. A total of 427 papers were screened, with 40 of these selected from the initial search. A subsequent 154 were included from manual review of reference lists from key papers identified in the initial search. Current guidelines recommend treating the individual manifestations of PCOS. In doing so, there is good evidence identifying that this approach adequately targets the underlying metabolic and reproductive changes associated with the syndrome. This suggests that providing a diagnostic label of PCOS is not actually necessary to effectively manage adolescent girls with features of this syndrome.

Endometrial Volume Measured by VOCAL Compared to Office Hysteroscopy for Diagnosis of Endometrial Polyps in Premenopausal Women with Abnormal Uterine Bleeding

The aim is to compare hysteroscopy, two-dimensional transvaginal ultrasound (2D TVUS), and three-dimensional (3D) Virtual Organ Computer-aided AnaLysis™ (VOCAL) to detect endometrial polyps (EPs) in premenopausal women with abnormal uterine bleeding (AUB). This prospective study was done at Ain Shams Maternity Hospital, Egypt, from March 5, 2015, to December 30, 2015, enrolling 118 premenopausal women with AUB. 2D TVUS, 3D VOCAL, and hysteroscopy were done. 109 patients reached final analysis. 36 women (33%) were diagnosed with EP by 2D TVUS. 50 (45.9%) had EP by hysteroscopy. Endometrial thickness was 10.1 mm by 2D TVUS and endometrial volume was 4.92 mL by VOCAL in women with EP by hysteroscopy compared to 9.9 mm and 3.50 mL in women with no EP, respectively (P = 0.223; P = 0.06). 2D TVUS has sensitivity, specificity, and positive and negative predictive values of 54%, 84.7%, 75%, and 68.5%, respectively. Endometrial thickness of >7.5 mm has sensitivity, specificity, positive and negative predictive values, and overall accuracy of 82%, 37.3%, 52.6%, 71%, and 57.8%, respectively. Endometrial volume of >1.2 mL has sensitivity, specificity, positive and negative predictive values, and overall accuracy of 90%, 42.4%, 57%, 83.3%, and 64.2%, respectively. 3D VOCAL may be used as a noninvasive method for the diagnosis of EP in premenopausal women with AUB.

Roles of sonography and hysteroscopy in the detection of premalignant and malignant polyps in women presenting with postmenopausal bleeding and thickened endometrium

BACKGROUND

To assess the role of sonographic endometrial thickness and hysteroscopic polyp size in predicting premalignant and malignant polyps in postmenopausal women.

MATERIALS AND METHODS

A total of 328 postmenopausal women with abnormal uterine bleeding and thickened endometrium underwent operative hysteroscopy due to detection of endometrial polyps were included in this retrospective study. Preoperative endometrial thickness measured by transvaginal ultrasonography and polyp size on hysteroscopy were noted. Hysteroscopic resection with histology was performed for endometrial polyps. Endometrial thickness and polyp size were evaluated on the basis of final diagnosis established by histologic examination. Receiver operator characteristic curves were calculated to assess the sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of endometrial thickness and polyp size for detecting premalignant and malignant polyps.

RESULTS

Premalignant and malignant polyps were identified in 26 (7.9%) of cases. Sonographic measurement showed a greater endometrial thickness in cases of premalignant and malignant polyps when compared to benign polyps. On surgical hysteroscopy, premalignant and malignant polyps were also larger. Endometrial thickness demonstrated a sensitivity of 53.8%, specificity of 85.8%, PPV of 24.6% and NPV of 95.6% at a cut-off limit of 11.5 mm with diagnostic accuracy of 83.2%. Polyp size has a diagnostic accuracy of 94.8% with a sensitivity of 92.3%, specificity of 95.0%, PPV of 61.5% and NPV of 99.3% at a cut-off point of 19.5mm.

CONCLUSIONS

Endometrial thickness measured by transvaginal ultrasonography is not sufficient in predicting premalignant and malignant endometrial polyps in postmenopausal women with abnormal uterine bleeding and thickened endometrium. Polyp size on hysteroscopy is a more accurate parameter, because of better sensitivity and specificity. However, while polyp size ≥ 19.5mm seems to have a great accuracy for predicting premalignancy and malignancy, histologic evaluation is still necessary to exclude premalignant and malignant polyps.

Hysteroscopy as a valid tool for endometrial pathology in patients with postmenopausal bleeding or asymptomatic patients with a thickened endometrium: hysteroscopic and histological results

OBJECTIVE

This study compares hysteroscopic and histopathological results in postmenopausal women with abnormal uterine bleeding (AUB) and asymptomatic postmenopausal women with a thickened endometrium.

MATERIALS AND METHODS

This is a retrospective study of 570 cases hysteroscopically examined between January 2008 and July 2012. The patients were followed up at the Istituto Tumori 'Giovanni Paolo II', Bari, Italy.

RESULTS

A total of 320 of the 570 cases were selected. The inclusion criteria were transvaginal ultrasound, hysteroscopy and endometrial biopsy. In the AUB group, if the hysteroscopy results were normal, a sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of 100, 95, 71 and 100%, respectively, were achieved, while in the asymptomatic group these values were 100, 97, 90 and 100%, respectively. For both the group with polyps and that with myomas, the sensitivity, specificity, PPV and NPV were 100%. For endometrial hyperplasia, hysteroscopy showed a sensitivity, specificity, PPV and NPV of 81, 96, 87 and 93%, respectively, in the AUB group, while in the asymptomatic group, the sensitivity was 60%, the specificity and PPV were 100%, and the NPV was 98%. The sensitivity of hysteroscopy for endometrial cancer was 63%, the specificity 97%, the PPV 77%, and the NPV 95%.

CONCLUSIONS

In postmenopausal women with a thickened endometrium with or without AUB, hysteroscopy allows for an accurate diagnosis in benign endometrial pathology. Hysteroscopy also allows directed biopsies of suspicious lesions, which is useful in malignant endometrial pathology.

Risks and benefits of hysteroscopy and endometrial sampling as a standard procedure for assessing serendipitous findings of endometrial thickening in postmenopausal women

A retrospective study was undertaken of 35 asymptomatic postmenopausal women undergoing hysteroscopy, dilatation and curettage (H D&C) for an incidental finding of thickened endometrium to assess the rate of significant pathological findings, cost per finding and complication rate of any procedures performed. This study found one case of endometrial adenocarcinoma (1/35; 3%) at an estimated cost per significant finding of $507,116 with an estimated 11.6 complication events per finding.

Diagnostic accuracy of endometrial thickness for the detection of intra-uterine pathologies and appropriateness of performed hysteroscopies among asymptomatic postmenopausal women

OBJECTIVE

To measure the diagnostic accuracy of endometrial thickness for the detection of intra-uterine pathologies among asymptomatic postmenopausal women, and to test the diagnostic accuracy and appropriateness of performed hysteroscopies.

STUDY DESIGN

Prospective study of 268 asymptomatic postmenopausal women with endometrial thickness ≥4 mm referred to diagnostic hysteroscopy. The diagnostic accuracy of various endometrial thickness cut-off values was tested. Histological and hysteroscopic results were compared to measure the diagnostic accuracy of outpatient hysteroscopies.

RESULTS

No endometrial thickness cut-off values had optimal diagnostic accuracy [positive likelihood ratio (LR+) >10 and negative likelihood ratio (LR-) <0.1]. The best endometrial thickness cut-off value for the detection of all intra-uterine pathologies was ≥8 mm (LR+ 10.05 and LR- 0.22). An endometrial thickness cut-off value ≥10 mm did not miss any cases of endometrial cancer. The success rate of diagnostic hysteroscopy was 89%, but 97% of these revealed a benign intra-uterine pathology. The diagnostic accuracy of hysteroscopy was optimal for all intra-uterine pathologies, except endometrial hyperplasia (LR- 0.52).

CONCLUSION

Using an endometrial thickness cut-off value ≥4 mm, only 3% of performed hysteroscopies were useful for the detection of pre-malignant or malignant lesions. Despite the finding that endometrial thickness did not show optimal diagnostic accuracy, using the best cut-off value (≥8 mm) may be helpful to decrease the number of false-positive results. No cases of endometrial cancer were diagnosed in asymptomatic postmenopausal women with endometrial thickness <10mm.

Diagnosis and treatment of polycystic ovary syndrome: an Endocrine Society clinical practice guideline

OBJECTIVE

The aim was to formulate practice guidelines for the diagnosis and treatment of polycystic ovary syndrome (PCOS).

PARTICIPANTS

An Endocrine Society-appointed Task Force of experts, a methodologist, and a medical writer developed the guideline.

EVIDENCE

This evidence-based guideline was developed using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system to describe both the strength of recommendations and the quality of evidence.

CONSENSUS PROCESS

One group meeting, several conference calls, and e-mail communications enabled consensus. Committees and members of The Endocrine Society and the European Society of Endocrinology reviewed and commented on preliminary drafts of these guidelines. Two systematic reviews were conducted to summarize supporting evidence.

CONCLUSIONS

We suggest using the Rotterdam criteria for diagnosing PCOS (presence of two of the following criteria: androgen excess, ovulatory dysfunction, or polycystic ovaries). Establishing a diagnosis of PCOS is problematic in adolescents and menopausal women. Hyperandrogenism is central to the presentation in adolescents, whereas there is no consistent phenotype in postmenopausal women. Evaluation of women with PCOS should exclude alternate androgen-excess disorders and risk factors for endometrial cancer, mood disorders, obstructive sleep apnea, diabetes, and cardiovascular disease. Hormonal contraceptives are the first-line management for menstrual abnormalities and hirsutism/acne in PCOS. Clomiphene is currently the first-line therapy for infertility; metformin is beneficial for metabolic/glycemic abnormalities and for improving menstrual irregularities, but it has limited or no benefit in treating hirsutism, acne, or infertility. Hormonal contraceptives and metformin are the treatment options in adolescents with PCOS. The role of weight loss in improving PCOS status per se is uncertain, but lifestyle intervention is beneficial in overweight/obese patients for other health benefits. Thiazolidinediones have an unfavorable risk-benefit ratio overall, and statins require further study.

Value of 3-dimensional and power Doppler sonography for diagnosis of endometrial polyps

OBJECTIVES

To investigate whether the endometrial thickness, endometrial volume, and endometrial and subendometrial vascularization index, flow index, and vascularization-flow index were useful for diagnosing endometrial polyps in infertility.

METHODS

Transvaginal and 3-dimesional power Doppler sonography was performed to calculate the endometrial echogenicity, endometrial thickness, endometrial volume, and endometrial and subendometrial vascularization index, flow index, and vascularization-flow index, followed by hysteroscopy in the follicular phase of the menstrual cycle (postmenstrual days 3-7). A total of 555 patients were selected, and 4 groups were defined according to the comparison of sonographic and hysteroscopic diagnoses: group A (sonographically positive but hysteroscopically negative), group B (sonographically and hysteroscopically negative), group C (sonographically negative but hysteroscopically positive), and group D (sonographically and hysteroscopically positive).

RESULTS

A total of 426 patients were enrolled in the final analysis. Significantly higher endometrial thickness and volume were found in groups C and D compared with groups A and B (P < .05). There were no significant differences among the 4 groups in terms of the endometrial and subendometrial vascularization index, flow index, and vascularization-flow index (P > .05). The sensitivity, specificity, and positive and negative predictive values of endometrial thickness and volume in predicting endometrial polyps were 62.7%, 69.8%, 26.9%, and 91.9% and 39.3%, 88.2%, 35.8%, and 89.7%, respectively. Combined sonographic evaluation (sonographic echogenicity, endometrial thickness, and endometrial volume) showed higher sensitivity, specificity, and positive and negative predictive values (65.6%, 89.0%, 50.0%, and 93.9%) compared with a single indicator.

CONCLUSIONS

A combination of endometrial echogenicity, thickness, and volume on sonography may be better than a single indicator for predicting endometrial polyps in infertility. However, the endometrial or subendometrial vascularization index, flow index, and vascularization-flow index are not useful for prediction.

ACR appropriateness criteria(®) on abnormal vaginal bleeding

In evaluating a woman with abnormal vaginal bleeding, imaging cannot replace definitive histologic diagnosis but often plays an important role in screening, characterization of structural abnormalities, and directing appropriate patient care. Transvaginal ultrasound (TVUS) is generally the initial imaging modality of choice, with endometrial thickness a well-established predictor of endometrial disease in postmenopausal women. Endometrial thickness measurements of ≤5 mm and ≤4 mm have been advocated as appropriate upper threshold values to reasonably exclude endometrial carcinoma in postmenopausal women with vaginal bleeding; however, the best upper threshold endometrial thickness in the asymptomatic postmenopausal patient remains a subject of debate. Endometrial thickness in a premenopausal patient is a less reliable indicator of endometrial pathology since this may vary widely depending on the phase of menstrual cycle, and an upper threshold value for normal has not been well-established. Transabdominal ultrasound is generally an adjunct to TVUS and is most helpful when TVUS is not feasible or there is poor visualization of the endometrium. Hysterosonography may also allow for better delineation of both the endometrium and focal abnormalities in the endometrial cavity, leading to hysteroscopically directed biopsy or resection. Color and pulsed Doppler may provide additional characterization of a focal endometrial abnormality by demonstrating vascularity. MRI may also serve as an important problem-solving tool if the endometrium cannot be visualized on TVUS and hysterosonography is not possible, as well as for pretreatment planning of patients with suspected endometrial carcinoma. CT is generally not warranted for the evaluation of patients with abnormal bleeding, and an abnormal endometrium incidentally detected on CT should be further evaluated with TVUS.

Value of transvaginal ultrasonography in endometrial evaluation of non-bleeding postmenopausal women

OBJECTIVE

To investigate the value of transvaginal ultrasonography (TVU) in the evaluation of the endometrium in postmenopausal women without vaginal bleeding.

METHODS

This was a prospective, cohort, observational study which included 259 consecutive, asymptomatic, postmenopausal women who were referred to the outpatient clinics of Shiraz University of Medical Sciences. All the participants underwent TVU by the same gynecologist at the same time as hysteroscopy and endometrial biopsy were performed. Both 3 mm and 5 mm were considered as cut-off values. Endometrial histopathology was considered the gold-standard diagnosis and the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of TVU were calculated on the basis of pathologic reports.

RESULTS

The mean age of the patients was 54.2 ± 7.46 years (range 36-79 years). The mean endometrial thickness was found to be 3.83 ± 2.95 mm (range 1-25 mm); it was > 5 mm in 41 (15.8%) patients. The sensitivity, specificity, PPV and NPV were 62.2%, 93.9%, 68.3% and 92.2%, respectively. The receiver-operating characteristics curve showed an area under the curve of 0.853 (95% confidence interval 0.788-0.917), indicating a moderate accuracy. Conclusion TVU is a moderately accurate test in asymptomatic postmenopausal women. Due to its high false-positive rate, its positive results cannot be interpreted.

Cesarean section scar defects: agreement between transvaginal sonographic findings with and without saline contrast enhancement

OBJECTIVES

To determine the agreement between transvaginal ultrasound examinations performed before and at saline contrast sonohysterography (SCSH) with regard to number, size and shape of Cesarean section (CS) scar defects.

METHODS

In all, 108 women underwent transvaginal ultrasound examination with SCSH at least 6 months after CS: 68 had undergone one CS, 32 two CSs and eight women had undergone at least three CSs. The ultrasound examiner was blinded to the number of CSs and to the obstetric history. The number and shape of CS scar defects were determined subjectively, and any scar defect was estimated subjectively to be large or not large. Measurements of the scar defects were also taken. Results obtained before and at SCSH were compared.

RESULTS

Most scar defects were triangular in shape. The shape did not change at SCSH, but the ultrasound examiner found it easier to delineate the borders of the scar defects at SCSH than at unenhanced ultrasound examination. More scar defects were seen and more scar defects were classified as large at SCSH than before: among the 100 women who had undergone one or two CSs, 16 additional women had large defects at SCSH, whereas no woman with a large defect before SCSH had no defect or only a small defect at SCSH. The length and height of the defects were larger at SCSH than before: mean difference 2 mm and 1 mm in women who had undergone one CS, and mean difference 4 mm and 2 mm in the lowest-positioned scar in women who had undergone two CSs.

CONCLUSIONS

In non-pregnant women CS scars were better evaluated at SCSH than at unenhanced ultrasound examination, because the demarcations of scar defects were more clearly delineated at SCSH than before. More defects were detected and more defects were classified as large at SCSH.