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Platform for Quantitative Detection of Endometrial Immune Cells Based on Immunohistochemistry and Digital Image Analysis
Published on: October 13, 2023
Immunohistochemistrical and clinicopathological characterization of chronic endometritis
Kotaro Kitaya1, Tadahiro Yasuo
1Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Kajii-cho, Kamigyo-ku, Japan. kitaya@koto.kpu-m.ac.jp
Insights
Chronic endometritis, a common gynecological condition, is often asymptomatic and difficult to detect. Immunohistochemistry revealed its prevalence and highlighted differences between symptomatic and asymptomatic cases.
Area of Science:
- Gynecologic pathology
- Reproductive immunology
Background:
- Chronic endometritis is often asymptomatic and challenging to diagnose with conventional methods.
- Immunohistochemistry offers a more sensitive approach to identifying this condition.
Purpose of the Study:
- To investigate the clinicopathological features of chronic endometritis using immunohistochemistry.
- To determine the prevalence and characteristics of chronic endometritis in endometrial specimens.
Main Methods:
- Immunohistochemistry for syndecan-1 (a plasmacyte marker) was performed on 234 archival endometrial specimens.
- Endometrial morphology was dated, and stromal plasmacyte infiltration was quantified.
- Clinical data from patient charts were correlated with pathological findings.
Main Results:
- Chronic endometritis was detected in 11.1% of examined samples.
- The condition occurred equally in proliferative and secretory phases.
- 23.1% of cases were asymptomatic, with less pronounced stromal infiltration and morphological delay compared to symptomatic cases.
Conclusions:
- Chronic endometritis is a prevalent gynecological condition, frequently asymptomatic.
- No significant menstrual cycle-dependent variation in chronic endometritis occurrence was observed.
Problem:
Chronic endometritis is an elusive entity that is often asymptomatic and undetectable by conventional endometrial biopsy and histological examination. Using immunohistochemistry for full-thickness endometrium, we sought for its clinicopathological features.
Method Of Study:
Two hundred and thirty-four archival endometrial specimens obtained by hysterectomy were immunostained for the plasmacyte marker syndecan-1 to identify chronic endometritis. Endometrial morphology was dated by the standard criteria. The immunoreactive cells were enumerated in 10 non-overlapping endometrial stromal areas. The clinical parameters were obtained from the medical charts.
Results:
Chronic endometritis was identified in 11.1% of the samples examined. Its occurrence was similar between the proliferative phase and secretory phase. A total of 23.1% of the cases were asymptomatic. Stromal plasmacyte infiltration and morphological delay were more prominent in symptomatic chronic endometritis than in asymptomatic counterpart.
Conclusions:
Chronic endometritis is a common gynecological pathological condition and more often asymptomatic than ever expected. There was no menstrual cycle-dependent fluctuation in its occurrence.
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