J 2022

The amount of preoperative endometrial tissue surface in relation to final endometrial cancer classification

VREDE, S.W., A.M.C. HULSMAN, C. REIJNEN, K. VAN DE VIJVER, E. COLAS et. al.

Basic information

Original name

The amount of preoperative endometrial tissue surface in relation to final endometrial cancer classification

Authors

VREDE, S.W. (guarantor), A.M.C. HULSMAN, C. REIJNEN, K. VAN DE VIJVER, E. COLAS, G. MANCEBO, C.P. MOIOLA, A. GIL-MORENO, J. HUVILA, M. KOSKAS, Vít WEINBERGER (203 Czech Republic, belonging to the institution), Luboš MINÁŘ (203 Czech Republic, belonging to the institution), Eva JANDÁKOVÁ (203 Czech Republic, belonging to the institution), M. SANTACANA, X. MATIAS-GUIU, F. AMANT, M.P.L.M. SNIJDERS, H.V.N. KÜSTERS-VANDEVELDE, J. BULTEN and J.M.A. PIJNENBORG

Edition

Gynecologic oncology, SAN DIEGO, ACADEMIC PRESS INC ELSEVIER SCIENCE, 2022, 0090-8258

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30214 Obstetrics and gynaecology

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.700

RIV identification code

RIV/00216224:14110/22:00128746

Organization unit

Faculty of Medicine

UT WoS

000929667200010

Keywords in English

Endometrial carcinoma; Diagnosis; Concordant; Discordant; Pathology; Endometrial sampling

Tags

International impact, Reviewed
Změněno: 7/3/2023 07:41, Mgr. Tereza Miškechová

Abstract

V originále

Objective To evaluate whether the amount of preoperative endometrial tissue surface is related to the degree of concordance with final low- and high-grade endometrial cancer (EC). In addition, to determine whether discordance is influenced by sampling method and impacts outcome. Methods A retrospective cohort study within the European Network for Individualized Treatment of Endometrial Cancer (ENITEC). Surface of preoperative endometrial tissue samples was digitally calculated using ImageJ. Tumor samples were classified into low-grade (grade 1–2 endometrioid EC (EEC)) and high-grade (grade 3 EEC + non-endometroid EC). Results The study cohort included 573 tumor samples. Overall concordance between pre- and postoperative diagnosis was 60.0%, and 88.8% when classified into low- and high-grade EC. Upgrading (preoperative low-grade, postoperative high-grade EC) was found in 7.8% and downgrading (preoperative high-grade, postoperative low-grade EC) in 26.7%. The median endometrial tissue surface was significantly lower in concordant diagnoses when compared to discordant diagnoses, respectively 18.7 mm2 and 23.5 mm2 (P = 0.022). Sampling method did not influence the concordance in tumor classification. Patients with preoperative high-grade and postoperative low-grade showed significant lower DSS compared to patients with concordant low-grade EC (P = 0.039). Conclusion The amount of preoperative endometrial tissue surface was inversely related to the degree of concordance with final tumor low- and high-grade. Obtaining higher amount of preoperative endometrial tissue surface does not increase the concordance between pre- and postoperative low- and high-grade diagnosis in EC. Awareness of clinically relevant down- and upgrading is crucial to reduce subsequent over- or undertreatment with impact on outcome.