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Correlation Discrepancies between High-Grade Squamous Intraepithelial Lesions and High-Grade Cervical Intraepithelial Neoplasia: A Cytological/Histological Correlation Study from a Single-Institution ExperienceZhang M.a · Carrozza M.a · Huang Y.b
aDepartment of Pathology and Laboratory Medicine, Temple University Hospital, Philadelphia, Pa., and bDivision of Anatomic Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minn., USA Corresponding Author
Correspondence to: Dr. Yajue Huang
Department of Laboratory Medicine and Pathology
Division of Anatomic Pathology, Mayo Clinic
200 First Street SW, Rochester, MN 55905 (USA)
Objective: Previous studies have demonstrated diagnostic discrepancies for the detection of high-grade cervical intraepithelial neoplasia (CIN 2/3) from previously confirmed cytological high-grade squamous intraepithelial lesions (HSILs). The goal of this study is to investigate the possible factors which may be responsible for this diagnostic discrepancy. Study Design: The study included all the cytological specimens diagnosed with a HSIL by the Papanicolaou (Pap) test at Temple University Hospital (2000-2010) as well as timely follow-up cervical biopsies. The biopsy tissue types and diagnoses were subsequently categorized and analyzed. Results: Of the total 842 Pap tests with HSIL diagnosis, 96 cases (11.4%) showed non-CIN 2/3 in follow-up cervical biopsies. Among those cases, the most common biopsy diagnoses were cervicitis (27.9%) and CIN 1 (25%). Endocervical curettage (ECC) samples showed a high percentage of inadequacy for diagnosis (43.7%). Thirty-seven cases had subsequent follow-up biopsy, and CIN 2/3 was found in 15 cases. However, none of the CIN 2/3 cases was detected by ECC sampling. Conclusions: Our study indicated that the discrepant correlation between HSIL and CIN 2/3 was most likely due to tissue sampling issues during colposcopic examination. The diagnostic value of ECC remains poor for the detection and grading of cervical intraepithelial dysplasia.
© 2013 S. Karger AG, Basel