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Updated: Jul 29, 2026

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Collection, Isolation, and Flow Cytometric Analysis of Human Endocervical Samples
Published on: July 6, 2014
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Impact of a Modified HistoGel Method for Processing Endocervical Curettage Specimens on Diagnostic Yield
Maximiliano Ramia de Cap1, David Jou1, Yigu Chen1
1Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA.
American Journal of Clinical Pathology
|October 3, 2020
Summary
A new cellular concentration method for endocervical curettage (ECC) did not significantly improve specimen adequacy or reduce diagnostic discordance compared to standard processing. Further research is needed to enhance diagnostic quality for scant ECC samples.
Area of Science:
- Gynecologic Pathology
- Cervical Cancer Screening
- Histotechnology
Background:
- Endocervical curettage (ECC) specimens are crucial for diagnosing cervical conditions but can be limited by scant tissue.
- Improving the diagnostic quality of ECC specimens is essential for accurate patient management.
Purpose of the Study:
- To evaluate the effectiveness of a cellular concentration processing method for improving the diagnostic quality of endocervical curettage specimens.
- To assess the impact of this method on specimen adequacy and diagnostic concordance with other cervical screening tests.
Main Methods:
- A comparative study was conducted between nonconcentrated ECC (NECC) and concentrated ECC (CECC) using a HistoGel-based cell block method.
- Multivariate logistic regression analyses were performed to assess the influence of the processing method on ECC adequacy and Pap smear-tissue diagnosis discordance.
Main Results:
- Specimen adequacy rates were similar between NECC (88.2%) and CECC (84.7%), with no statistically significant difference (P = .06).
- While initial discordance rates differed (9.5% for NECC vs. 13.3% for CECC, P = .04), the processing method was not a significant factor in multivariate analysis (OR = 0.74, P = .11).
- Adequate ECC sampling and concurrent biopsies/LEEPs were independently associated with better concordance between Pap smear and tissue diagnoses.
Conclusions:
- The evaluated cellular concentration processing method did not significantly enhance endocervical curettage specimen adequacy or reduce diagnostic discordance.
- Factors such as adequate sampling and concurrent procedures play a more significant role in achieving diagnostic concordance.

