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Effect of histological examination on the diagnosis of pancreatic mass using endoscopic ultrasound fine-needle aspiration

Authors
Choi, Seong JiLee, Jae MinLee, Kang WonChoi, Hyuk SoonKim, Eun SunKeum, BoraYoon, Jai HoonJeen, Yoon TaeChun, Hoon JaiLee, Hong SikChoi, Ho Soon
Issue Date
Sep-2021
Publisher
Akademia Medyczna we Wroclawiu/Wroclaw Medical University
Keywords
endosonography; diagnosis; pancreatic neoplasms; endoscopic ultrasound-guided fine-needle aspiration
Citation
Advances in Clinical and Experimental Medicine, v.30, no.9, pp.885 - 891
Indexed
SCIE
SCOPUS
Journal Title
Advances in Clinical and Experimental Medicine
Volume
30
Number
9
Start Page
885
End Page
891
URI
https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/54594
DOI
10.17219/acem/136278
ISSN
1899-5276
Abstract
Background. Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is a well-established method for the diagnosis of solid pancreatic lesions. However, the diagnostic yield of EUS-FNA for pancreatic lesions varies at around 70-90%. Samples from EUS-FNA consist of cells and tissues that can be analyzed separately, and the results can be combined for a final diagnosis. Objectives. To investigate the effect of cytological and histological analysis of EUS-FNA samples on the final diagnosis, and identify factors that may affect the accuracy of the cytological, histological, and overall analysis. Materials and methods. A single-center prospective observational study was conducted at a tertiary university hospital from July 2018 to June 2019. Patients who underwent EUS-FNA for pancreatic solid lesions with a 22-gauge EUS-FNA needle were included in our study. Liquid-based cytological analysis of the speci-men and histological analysis of the whitish core were performed, and factors that affected the diagnostic accuracy of each analysis were evaluated. Results. In 63 EUS-FNA samples, the overall diagnostic accuracy was 87.3%, which was significantly higher than the cytological accuracy of 73.8% (p = 0.031) and the histological accuracy of 69.8% (p = 0.001). Factors that affected the results differed in each group: 1) cytological analysis: size, location, and approach method; 2) histological analysis: specimen weight; and 3) overall analysis: size, location, and approach method. Conclusions. Histologic evaluation of core material obtained from EUS-FNA improved diagnostic accuracy, and factors that affected each result were analyzed. Further studies with prospective randomized trials are recommended to support our data.
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