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Correlation between hysteroscopy findings and chronic endometritis
Dongmei Song1, Tin-Chiu Li2, Yun Zhang3
1Hysteroscopic Centre, Fu Xing Hospital, Capital Medical University, Beijing, People's Republic of China.
Insights
Hysteroscopy can suggest chronic endometritis (CE) with findings like hyperemia, but its 67% accuracy means it cannot replace endometrial biopsy. Immunohistochemistry for plasma cells remains the gold standard for diagnosing CE.
Area of Science:
- Reproductive Medicine
- Gynecologic Pathology
- Diagnostic Imaging
Background:
- Chronic endometritis (CE) is a persistent inflammation of the uterine lining.
- Accurate diagnosis of CE is crucial for reproductive health outcomes.
- Hysteroscopy is a minimally invasive procedure used to visualize the uterine cavity.
Purpose of the Study:
- To evaluate the diagnostic role and accuracy of hysteroscopy in identifying chronic endometritis (CE).
- To assess the correlation between hysteroscopic findings and histological confirmation of CE.
Main Methods:
- A retrospective cohort study of 1,189 patients undergoing diagnostic hysteroscopy.
- Endometrial biopsy specimens were collected post-hysteroscopy for histology and CD138 immunohistochemistry to detect plasma cells.
- Analysis of hysteroscopic features (hyperemia, edema, micro-polyps) and their correlation with CD138 positivity.
Main Results:
- CD138-positive plasma cells, indicative of CE, were found in 27.1% of cases.
- Hysteroscopic features like endometrial hyperemia (52.5%) and micro-polyps (3.4%) were observed in CE cases.
- The overall diagnostic accuracy of hysteroscopy for CE was 66.9%, with a sensitivity of 59.3% and specificity of 69.7%.
Conclusions:
- Hysteroscopic findings such as endometrial hyperemia, micro-polyps, or edema can raise suspicion for CE.
- Hysteroscopy alone has limited accuracy (67%) and should not replace histological examination for CE diagnosis.
- Endometrial biopsy with CD138 immunohistochemistry remains the preferred diagnostic method for chronic endometritis.
Objective:
To evaluate the role of hysteroscopy in the diagnosis of chronic endometritis (CE).
Design:
Retrospective cohort study.
Setting:
University teaching hospital.
Patient(S):
A consecutive series of 1,189 cases of diagnostic hysteroscopy.
Intervention(S):
Endometrial biopsy specimens were obtained after hysteroscopy for routine histology and immunohistochemistry for plasma cells using a CD138 epitope.
Main Outcome Measure(S):
Observer variability, sensitivity, specificity, and accuracy of the hysteroscopic features in the diagnosis of CE.
Result(S):
Immunohistochemistry of biopsy specimens showed presence of CD138 cells in 322 of 1,189 cases (27.1%). Among cases that tested positive for CD138 cells, the prevalence of hysteroscopic features was as follows: endometrial hyperemia, 169 of 322 (52.5%); endometrial interstitial edema, 27 of 322 (8.4%); and micro-polyps, 11 of 322 (3.4%). The κ value of intraobserver and interobserver agreement on the presence or absence of the hysteroscopic feature of CE was 0.86 and 0.73, respectively. The sensitivity, specificity, positive and negative predictive value, and diagnostic accuracy of the presence of one or more hysteroscopy features were 59.3%, 69.7%, 42.1%, 82.8%, and 66.9%, respectively.
Conclusion(S):
The finding of endometrial hyperemia, micro-polyps or endometrial interstitial edema during hysteroscopy should alert to the diagnosis of CE, but the overall accuracy of hysteroscopic examination with regard to the diagnosis of CE is only 67%, so it should not be used to replace histologic examination as the diagnostic tool of choice. In women in whom a diagnosis of CE is considered likely, endometrial biopsy should be obtained to examine plasma cells by immunohistochemistry, which should remain the preferred method for diagnosis.
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