scholarly journals Low-Grade Squamous Intraepithelial Lesion or High-Grade Squamous Intraepithelial Lesion? Concordance Between the Interpretation of Low-Grade Squamous Intraepithelial Lesion and High-Grade Squamous Intraepithelial Lesion in Papanicolaou Tests: Results From the College of American Pathologists PAP Education Program

2018 ◽  
Vol 143 (1) ◽  
pp. 81-85 ◽  
Author(s):  
Barbara A. Crothers ◽  
Mohiedean Ghofrani ◽  
Chengquan Zhao ◽  
Leslie G. Dodd ◽  
Kelly Goodrich ◽  
...  
Keyword(s):  
Education Program ◽  
Repeated Measures ◽  
False Negative ◽  
Misclassification Rate ◽  
Low Grade ◽  
High Grade ◽  
Squamous Intraepithelial Lesion ◽  
Significant Difference ◽  
Intraepithelial Lesion ◽  
Diagnostic Concordance

Context.— Obtaining diagnostic concordance for squamous intraepithelial lesions in cytology can be challenging. Objective.— To determine diagnostic concordance for biopsy-proven low-grade squamous intraepithelial lesion (LSIL) and high-grade squamous intraepithelial lesion (HSIL) Papanicolaou test slides in the College of American Pathologists PAP Education program. Design.— We analyzed 121 059 responses from 4251 LSIL and HSIL slides for the interval 2004 to 2013 using a nonlinear mixed-model fit for reference diagnosis, preparation type, and participant type. We evaluated interactions between the reference diagnosis and the other 2 factors in addition to a repeated-measures component to adjust for slide-specific performance. Results.— There was a statistically significant difference between misclassification of LSIL (2.4%; 1384 of 57 664) and HSIL (4.4%; 2762 of 63 395). There was no performance difference between pathologists and cytotechnologists for LSIL, but cytotechnologists had a significantly higher HSIL misclassification rate than pathologists (5.5%; 1437 of 27 534 versus 4.0%; 1032 of 25 630; P = .01), and both were more likely to misrepresent HSIL as LSIL (P < .001) than the reverse. ThinPrep LSIL slides were more likely to be misclassified as HSIL (2.4%; 920 of 38 582) than SurePath LSIL slides (1.5%; 198 of 13 196), but conventional slides were the most likely to be misclassified in both categories (4.5%; 266 of 5886 for LSIL, and 6.5%; 573 of 8825 for HSIL). Conclusions.— More participants undercalled HSIL as LSIL (false-negative) than overcalled LSIL as HSIL (false-positive) in the PAP Education program, with conventional slides more likely to be misclassified than ThinPrep or SurePath slides. Pathologists and cytotechnologists classify LSIL equally well, but cytotechnologists are significantly more likely to undercall HSIL as LSIL than are pathologists.

scholarly journals Misinterpretation Rates of High-Grade Squamous Intraepithelial Lesion in the College of American Pathologists Gynecologic PAP Education and PAP Proficiency Test Program

2016 ◽  
Vol 140 (11) ◽  
pp. 1221-1224 ◽  
Author(s):  
Chengquan Zhao ◽  
Barbara A. Crothers ◽  
Mohiedean Ghofrani ◽  
Zaibo Li ◽  
Rhona J. Souers ◽  
...  
Keyword(s):  
Proficiency Test ◽  
False Negative ◽  
False Negative Rate ◽  
Daily Practice ◽  
Low Grade ◽  
High Grade ◽  
Squamous Intraepithelial Lesion ◽  
Related Factors ◽  
Test Taking ◽  
Intraepithelial Lesion

Context.— Misinterpretation of high-grade squamous intraepithelial lesion (HSIL) is an important problem in daily practice and in the College of American Pathologists (CAP) PAP Proficiency Test (PAP-PT). Objective.— To investigate factors related to misinterpretation of HSIL through responses in a proficiency test versus an educational environment. Design.— We retrospectively evaluated 28 000 responses in the PAP Education Program (PAP-Edu) and 59 140 responses in PAP-PT from 1147 field-validated HSIL slides from 2007 to 2014. The related factors, such as program types, preparation types, participant types, and program years, were evaluated. Results.— Overall, 4.0% (2379 of 59 140) of responses for HSIL slides from PAP-PT were misinterpreted as either low-grade squamous intraepithelial lesion (LSIL) or negative, significantly more than those from PAP-Edu (3.2%; 898 of 28 000). However, the false-negative rate (misinterpreted as negative) was 0.9% (519 of 59 140) for PAP-PT, lower than that for PAP-Edu (1.0%; 266 of 28 000). The misinterpretation rates in PAP-PT trended down with time. Misinterpretation rates did not vary significantly by preparation methods. The misinterpretation rate for HSIL in the pathologists' responses was lower than that in cytotechnologists' responses in PAP-PT. More HSIL was misinterpreted as LSIL than as benign in both programs. Cytotechnologists interpreted HSIL as LSIL twice as much as pathologists. The most common false-negative misinterpretations were negative for intraepithelial lesion or malignancy and reparative change. Conclusions.— The higher LSIL misinterpretation rate by cytotechnologists may be related to the differences in reporting responsibilities and proficiency test grading criteria. The trend of gradually decreasing misinterpretation rates of a reference diagnosis of HSIL in the PAP-PT program may be related to higher test-taking confidence and better preparation through educational programs. The fact that pathologists performed better than cytotechnologists in PAP-PT, but not in PAP-Edu, may reflect a heightened approach and attentiveness in the test-taking environment for pathologists.

scholarly journals Value of Nucleolar Organizer Regions count in cervical pathology

1970 ◽  
Vol 2 (3) ◽  
pp. 180-185
Author(s):  
Shiva Raj KC ◽  
OP Talwar
Keyword(s):  
Precancerous Lesions ◽  
Squamous Metaplasia ◽  
Nucleolar Organizer Regions ◽  
Pap Smears ◽  
Low Grade ◽  
High Grade ◽  
Squamous Intraepithelial Lesion ◽  
Significant Difference ◽  
Intraepithelial Lesion ◽  
Intraepithelial Lesions

Background: ‘AgNOR’ represents Nucleolar Organiser Regions stained with silver which are related to cell proliferation rate and tumor malignant potential. The objective of this study was to evaluate the role of AgNOR in differentiating benign and precancerous lesions from cancerous lesions in both cervical smears and histology. Materials and Methods: This was a prospective study conducted at Manipal Teaching Hospital, from July 2005 to June 2007. Women of suspected cervical pathology and who underwent pap smears test followed by subsequent biopsy were included. There were 53 cases were included out of which 11 cases were of high grade squamous intraepithelial lesion and 12 cases of low grade squamous intraepithelial lesion, and 10 cases each of carcinoma, chronic cervicitis with and without squamous metaplasia. Results: In Low grade squamous intraepithelial lesion meanAgNOR dots was < (2.9 in pap smears and 1.9 in histology) in high grade lesion (3.45 in pap smears and 3.00 in histology). In carcinoma meanAgNOR dots was 5.18 and 4.05 in pap smears and histology respectively. Subjective AgNOR Pattern Assessment in pap smears and in histology was increasing with significant difference from intraepithelial lesions to carcinoma. Conclusion: In cervical pathology, the number and shape of AgNOR dots change from benign to precancerous to malignant tumors. Similarly, AgNOR Pattern Assessment is useful in differentiating benign to intraepithelial lesions to carcinoma cases. DOI: http://dx.doi.org/10.3126/jpn.v2i3.6017 JPN 2012; 2(3): 180-185

Clinical Relevance of ASC-H Cytologies: Experience in a Single Tertiary Hospital

2016 ◽  
Vol 60 (3) ◽  
pp. 217-224 ◽  
Author(s):  
Cristina Díaz del Arco ◽  
Mª Carmen Sanabria Montoro ◽  
Dolores García López ◽  
Eva Rodríguez Escudero ◽  
Mª Jesús Fernández Aceñero
Keyword(s):  
Predictive Value ◽  
False Negative ◽  
Tertiary Hospital ◽  
Pap Smears ◽  
Low Grade ◽  
High Grade ◽  
Squamous Intraepithelial Lesion ◽  
Negative Results ◽  
Intraepithelial Lesion ◽  
Clinical Records

Objectives: To review the cases of atypical squamous cells (ASC), cannot exclude squamous intraepithelial lesion (ASC-H) diagnosed at a single institution and to discuss the interpretation challenges and clinical management of these cases. Study Design: The ASC-H cases diagnosed at our institution from 2006 to 2015 were studied retrospectively; of 159,000 Pap smears, there were 959 cases of ASC of undetermined significance (ASC-US) and 148 cases of ASC-H. We have reviewed the clinical records of the ASC-H cases, and data have been analyzed using SPSS 20.0. Results: Median age was 43.1 years; 49.6% of the patients had previous cervical cytologies, and 55.9% of them were negative. Following ASC-H diagnosis, another smear was obtained in 97.1% of the cases and in 67.6% a biopsy was performed. Biopsy revealed low-grade dysplasia in 18.8% of the cases, high-grade dysplasia in 27.8%, and infiltrating carcinoma in 2.3%. Patients with significant lesions in histology were younger than patients with negative results (p = 0.08). A diagnosis of ASC-H/squamous intraepithelial lesion in the repeated cytology had a sensitivity of 74.2%, specificity of 39.6%, positive predictive value of 44.8%, and negative predictive value of 70% for the diagnosis of dysplasia. Conclusions: ASC-H diagnosis is associated with a high incidence of histological high-grade lesions. A repeat cytology can aid in the selection of high-risk patients, but there may be false-negative results.

Low Utility in Colposcopy-directed Biopsies for Non-high Grade Cytological Abnormalities on PAP Smear

2020 ◽  
Vol 16 (1) ◽  
pp. 18-22
Author(s):  
Eronmwon E. Gbinigie ◽  
Joshua Fogel ◽  
Maggie Tetrokalashvili
Keyword(s):  
Pap Smear ◽  
Multinomial Logistic Regression ◽  
Cervical Dysplasia ◽  
Outcome Variable ◽  
Low Grade ◽  
High Grade ◽  
Squamous Intraepithelial Lesion ◽  
Intraepithelial Lesion ◽  
Cytologic Abnormalities ◽  
Cytology Screening

Background: Clinicians commonly perform colposcopy directed biopsies on patients with low grade squamous intraepithelial lesion (LSIL) on PAP cytology even when not consistent with clinical guidelines. Objective: We study the association of PAP cytology screening results with cervical intra-epithelia neoplasia (CIN) 2-3 high-grade dysplasia, as confirmed by colposcopy-directed biopsy. Methods: A retrospective study of 263 women with an abnormality on the PAP smear. Multinomial logistic regression was performed with predictors of PAP cytology screening results with the outcome variable of colposcopy-directed biopsy. Results: High grade squamous intraepithelial lesion (HSIL) had significantly increased relative risk for CIN 2-3 (RR: 9.85, 95% CI: 1.84, 52.79, p=0.008). LSIL was not significantly associated with CIN 2-3. In the comparisons of negative with CIN-1, both HSIL and LSIL were not significantly associated with a negative biopsy. Conclusion: HSIL is associated with cervical dysplasia of CIN 2-3 while LSIL is not associated with cervical dysplasia of CIN 2-3. We do not recommend routine biopsies in patients with LSIL cytologic abnormalities unless additional compelling factors exist.

scholarly journals Adenoid Basal Carcinoma of Cervix: A Rare Case Report

2020 ◽  
Vol 3 (2) ◽  
pp. 392-394
Author(s):  
Alina Karna ◽  
Nisha Sharma
Keyword(s):  
Pap Smear ◽  
Total Abdominal Hysterectomy ◽  
Abdominal Hysterectomy ◽  
Low Grade ◽  
High Grade ◽  
Squamous Intraepithelial Lesion ◽  
Adenoid Cystic ◽  
Carcinoma Of Cervix ◽  
Rare Case Report ◽  
Intraepithelial Lesion

Adenoid basal carcinoma of the uterine cervix is a rare low-grade tumor and its cell origin is still obscure. Adenoid basal carcinoma can be confused with adenoid basal hyperplasia, adenoid cystic carcinoma, and basaloid squamous cell carcinoma of the cervix. We present here a case of a 59 year-old-female who initially presented with a high-grade squamous intraepithelial lesion on Pap smear. Total abdominal hysterectomy with bilateral salpingo-oophorectomy was performed. Histopathology revealed focal invasive adenoid basal carcinoma with extensive areas of a high-grade squamous intraepithelial lesion involving the endocervical gland. The immunohistochemical stain was positive for p16.

scholarly journals A multicentre, prospective, randomised controlled trial to evaluate hexaminolevulinate photodynamic therapy (Cevira®) as a novel treatment in patients with high grade squamous intraepithelial lesion: APRICITY Phase 3 study protocol

2021 ◽  
Author(s):  
Fei Chen ◽  
Zoltán Novák ◽  
Christian Dannecker ◽  
Long Sui ◽  
Youzhong Zhang ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Low Grade ◽  
High Grade ◽  
Efficacy And Safety ◽  
Squamous Intraepithelial Lesion ◽  
Phase 3 ◽  
Link Type ◽  
Surgical Methods ◽  
Intraepithelial Lesion ◽  
Randomised Controlled

AbstractIntroductionHigh-risk human papilloma virus (HPV)-associated cervical cancer is the fourth most common cancer in women worldwide. Current treatments of high grade squamous intraepithelial lesion (HSIL) of the cervix are based on invasive surgical interventions, compromising cervical competence and functionality.ObjectiveAPRICITY is a multicentre, prospective, double-blind, randomised controlled Phase 3 study further evaluating the efficacy and safety of Cevira®, an integrated drug- and light-delivery device for hexaminolevulinate photodynamic therapy, which shows promise as a novel, non-invasive therapy for women with HSIL.Methods and analysisPatients with biopsy-confirmed HSIL histology are invited to participate in the study currently being conducted at 47 sites in China and 25 sites in Ukraine, Russia and European Union. The aim is to include at least 384 patients which will be randomised to either Cevira® or placebo group (2:1). All patients will be assessed 3 months after first treatment and a second treatment will be administered in patients who are HPV positive or have at least low grade squamous intraepithelial lesion (LSIL). Primary endpoint is the proportion of the responders at 6 months after first treatment. Secondary efficacy endpoints and safety endpoints will be assessed at 6 months, and data for secondary performance endpoints for Cevira® device will be collected at 3 months and 6 months, in case second treatment was administered. All patients in the Cevira® group will be enrolled in an open, long-term extension study following patients for further 6 months to collect additional efficacy and safety data (study extension endpoints).ConclusionDue to its non-invasiveness and convenient application, Cevira® may be a favourable alternative to surgical methods in treatment of patients with HSIL.Ethics and disseminationThe study was approved by the ethics committee of the Peking Union Medical College Hospital and Hannover Medical University, Germany. Findings will be disseminated through peer review publications and conference presentations.Trial registration numberclinicaltrials.govNCT04484415

scholarly journals Evaluation of cervicovaginal smear results at postmenopausal period

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Sefa Kelekci ◽  
Emre Destegül ◽  
Servet Gençdal ◽  
Emre Ekmekçi ◽  
Hüseyin Aydoğmuş ◽  
...  
Keyword(s):  
Postmenopausal Women ◽  
Pap Smear ◽  
Premalignant Lesions ◽  
Low Grade ◽  
High Grade ◽  
Squamous Intraepithelial Lesion ◽  
Screening Programs ◽  
Postmenopausal Period ◽  
Pap Smear Screening ◽  
Intraepithelial Lesion

<p>This study evaluates the statistical analysis of cervicovaginal smear results at postmenopausal period accompanied by literature. Cervicovaginal smear results of 894 postmenopausal women were evaluated retrospectively according to the 2001 Bethesda system (BS) in Adana Numune Training and Research Hospital of Obstetrics and Gynecology Clinic from 2007–2010. The study found, normal results on 287 patients (32.1%), benign findings on 556 patients (62.2%), abnormal epithelial cell changes on 48 patients (5.36%) and malignant changes on 3 patients (0.33%). The abnormal epithelial changes were observed to be atypical cells of undetermined significance (ASC-US) for 22 patients (2.46%), <a href="http://medical-dictionary.thefreedictionary.com/high-grade+squamous+intraepithelial+lesion">low-grade squamous intraepithelial lesion</a> (LSIL) for 11 patients (1.23%), <a href="http://medical-dictionary.thefreedictionary.com/high-grade+squamous+intraepithelial+lesion">high-grade squamous intraepithelial lesion</a> (HSIL) for 7 patients (0.78%), findings that cannot exclude a high-grade squamous intraepithelial lesion (ASC-H) for 6 patients (0.55%) and atypical glandular cells-not otherwise specified (AGC-NOS) for 2 patients (0.22%). Malignant results were 2 squamous cell carcinomas (SCC) (0.22%) and 1 adenocarcinoma (ACC) (0.11%). Cervical cancer screening programs should be expanded and Pap smear screening should be applied to all postmenopausal women. The longer time span involved from premalignant lesions to cancer improves our chance for the diagnosis and treatment. As the incidence of invasive cancer increases in menopausal period, gynecological smear examination and regular check-up are crucial. A high rate of abnormalities of epithelial cells was detected in this study.</p><p> </p>

Papanicolaou Tests With Mixed High-Grade and Low-Grade Squamous Intraepithelial Lesion Features: Distinct Performance in the College of American Pathologists Interlaboratory Comparison Program in Cervicovaginal Cytopathology

2006 ◽  
Vol 130 (4) ◽  
pp. 456-459
Author(s):  
Andrew A. Renshaw ◽  
Dina R. Mody ◽  
Patricia Styer ◽  
Mary Schwartz ◽  
Barbara Ducatman ◽  
...  
Keyword(s):  
Interlaboratory Comparison ◽  
Low Grade ◽  
High Grade ◽  
Squamous Intraepithelial Lesion ◽  
Performance Trends ◽  
Mixed Features ◽  
Intraepithelial Lesion ◽  
Slide Type ◽  
Pure Versus ◽  
Better Than

Abstract Context.—Previous studies have shown that in gynecologic cytology, cases of low-grade squamous intraepithelial lesion (LSIL) and high-grade squamous intraepithelial lesion (HSIL) perform differently on interpretive review. The performance of cases with mixed LSIL and HSIL features is unknown. Objective.—To compare the performance of gynecologic cytology cases of “pure” LSIL and HSIL with cases showing mixed LSIL and HSIL features. Design.—We compiled performance data from the College of American Pathologists Interlaboratory Comparison Program in Cervicovaginal Cytopathology from the years 2003 and 2004, and compared the performance of slides showing relatively pure LSIL and HSIL (≤10% misclassification as HSIL and LSIL, respectively) with slides showing mixed LSIL or HSIL features (cases misclassified as LSIL or HSIL &gt;10% of the time). Results.—Interpretations from a total of 4508 cases (2452 HSIL and 2056 LSIL) were analyzed. Overall, the sensitivity of participants on slides with a reference diagnosis of HSIL was 97.3%, and of LSIL was 95.9%. Performance trends for pure versus mixed cases varied by slide type and reference diagnosis. For conventional slides, participant sensitivity on pure HSIL cases was greatest (98.0%) and on pure LSIL cases was least (95.2%), while participant performance on cases with mixed features was intermediate (97.0% for mixed HSIL and 96.7% for mixed LSIL). In contrast, participant performance on ThinPrep slides showed the greatest sensitivity for mixed LSIL slides (97.9%), while performance on mixed HSIL slides showed the lowest sensitivity (95.7%); slides with pure features had intermediate sensitivity levels (96.3% for both HSIL and LSIL). Further evaluation demonstrated that conventional pure HSIL slides performed significantly better than mixed HSIL slides (P = .006), whereas mixed LSIL slides performed better than pure LSIL slides (P = .01). For ThinPrep slides, pure HSIL cases performed similarly to mixed HSIL cases (P = .43), while mixed LSIL cases performed better than pure LSIL cases (P = .04). Conclusion.—Slides with mixed LSIL and HSIL features have measurably distinct performance characteristics in comparison to slides with pure LSIL or HSIL features. Participant performance on conventional mixed cases is distinctly different from performance on ThinPrep mixed cases.

scholarly journals Bethesda 2014 Implementation and Human Papillomavirus Primary Screening: Practices of Laboratories Participating in the College of American Pathologists PAP Education Program

2019 ◽  
Vol 143 (10) ◽  
pp. 1196-1202 ◽  
Author(s):  
Diane Davis Davey ◽  
Rhona J. Souers ◽  
Kelly Goodrich ◽  
Dina R. Mody ◽  
Sana O. Tabbara ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
Education Program ◽  
Cervical Cytology ◽  
Current Status ◽  
Low Grade ◽  
Hpv Testing ◽  
Squamous Intraepithelial Lesion ◽  
Primary Screening ◽  
Intraepithelial Lesion ◽  
Bethesda System

Context.— Cervical cancer screening laboratory practices may evolve with new terminology and technologies. Objective.— To investigate changes in cervical cytopathology practice resulting from the 2014 Bethesda System updates and screening technologies. Design.— Questionnaires accompanied 2016 and 2017 mailings of the College of American Pathologists PAP Education program. Results.— In 2016, most laboratories surveyed had adopted or were planning to adopt 2014 Bethesda System updates, and the majority (53%; 365 of 689) used an age cutoff of 45 for reporting benign-appearing endometrial cells. However, 51.3% (354 of 690) of laboratories used the term low-grade squamous intraepithelial lesion, cannot exclude high-grade squamous intraepithelial lesion, for cases with indeterminate features, and 44.9% (298 of 664) of laboratories used a 5000-cell cutoff for minimum squamous cellularity for posthysterectomy and posttherapy specimens. Reporting rates for cervical cytology metrics changed very little from 2013 to 2016, and the median ratio of atypical squamous cells to squamous intraepithelial lesion cases was 1.9 for ThinPrep and 1.8 for SurePath preparations. Most laboratories (59.4%; 389 of 655) did not offer stand-alone primary human papillomavirus (HPV) testing in 2017, and primary HPV testing accounted for a low proportion of HPV testing volumes. The Roche Cobas method was the most common platform for HPV primary screening. Conclusions.— These questionnaire surveys provide data about the current status of cervical cytology screening, including changes related to the 2014 Bethesda System updates and the adoption of HPV primary screening techniques.

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