{"title":"Impact of the 2022 Paris System on diagnostic accuracy and estimating the risk of high-grade malignancy in urine cytology","authors":"Anju Khairwa, Preeti Diwaker","doi":"10.1016/j.anndiagpath.2025.152495","DOIUrl":null,"url":null,"abstract":"<div><div>In 2016, The Paris System 1.0 (TPS 1.0) was introduced to overcome the problem of lack of a standardized reporting system and leading to diagnostic dilemmas for treating physicians. Following this, TPS 2.0 was introduced in 2022 to deal with certain limitations of TPS 1.0. Objectives of study: To evaluate the diagnostic accuracy and risk of malignancy (ROM) with risk of high-grade malignancy (ROHM) of urinary tract by of TPS 2.0 with TPS 1.0 and conventional reporting (CR) of urine cytology. Data were collected retrospectively from 2016 to 2023 from the departmental archives. The cases were reviewed and categorized as per TPS 2.0, TPS 1.0 and CR. Of 875 urine samples studied, 168 urine samples of patients with histology correlation were analyzed. TPS 2.0 had a maximum sensitivity of 64.2 % in Group A, highest specificity of 95.5, positive predictive value of 96.4 % and negative predictive value of 37.5 % in group B comparison to TPS 1.0 and CR. TPS 2.0 has significantly high sensitivity, and maximum receiver operating curve (ROC) with area under the curve (AUC) score (0.695) compared to TPS 1.0 and CR. TPS 2.0 predicted ROM for AUC, SHGUC and HGUC categories 67.6 %, 92 % and 96.8 %, whereas ROHM 26.5 %, 46.2 %, and 98.8 %, respectively. CR and TPS 1.0 predicted ROHM (95.2 % and 81.5 %), respectively. Implementation of TPS 2.0 revealed highest diagnostic accuracy and ROC AUC score for urinary tract malignancy, compared to TPS 1.0 and CR. Our study results highlight the impact of TPS 2.0 in urine cytology reporting.</div></div>","PeriodicalId":50768,"journal":{"name":"Annals of Diagnostic Pathology","volume":"78 ","pages":"Article 152495"},"PeriodicalIF":1.5000,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Diagnostic Pathology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1092913425000607","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PATHOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
In 2016, The Paris System 1.0 (TPS 1.0) was introduced to overcome the problem of lack of a standardized reporting system and leading to diagnostic dilemmas for treating physicians. Following this, TPS 2.0 was introduced in 2022 to deal with certain limitations of TPS 1.0. Objectives of study: To evaluate the diagnostic accuracy and risk of malignancy (ROM) with risk of high-grade malignancy (ROHM) of urinary tract by of TPS 2.0 with TPS 1.0 and conventional reporting (CR) of urine cytology. Data were collected retrospectively from 2016 to 2023 from the departmental archives. The cases were reviewed and categorized as per TPS 2.0, TPS 1.0 and CR. Of 875 urine samples studied, 168 urine samples of patients with histology correlation were analyzed. TPS 2.0 had a maximum sensitivity of 64.2 % in Group A, highest specificity of 95.5, positive predictive value of 96.4 % and negative predictive value of 37.5 % in group B comparison to TPS 1.0 and CR. TPS 2.0 has significantly high sensitivity, and maximum receiver operating curve (ROC) with area under the curve (AUC) score (0.695) compared to TPS 1.0 and CR. TPS 2.0 predicted ROM for AUC, SHGUC and HGUC categories 67.6 %, 92 % and 96.8 %, whereas ROHM 26.5 %, 46.2 %, and 98.8 %, respectively. CR and TPS 1.0 predicted ROHM (95.2 % and 81.5 %), respectively. Implementation of TPS 2.0 revealed highest diagnostic accuracy and ROC AUC score for urinary tract malignancy, compared to TPS 1.0 and CR. Our study results highlight the impact of TPS 2.0 in urine cytology reporting.
期刊介绍:
A peer-reviewed journal devoted to the publication of articles dealing with traditional morphologic studies using standard diagnostic techniques and stressing clinicopathological correlations and scientific observation of relevance to the daily practice of pathology. Special features include pathologic-radiologic correlations and pathologic-cytologic correlations.