Clinical Endoscopy

Original Article

Stereomicroscopic on-site evaluation in endoscopic ultrasound-guided tissue acquisition of upper gastrointestinal subepithelial lesions: Seigo Nakatani, Kosuke Okuwaki, Masafumi Watanabe, Hiroshi Imaizumi, Tomohisa Iwai, Takaaki Matsumoto, Rikiya Hasegawa, Hironori Masutani, Takahiro Kurosu, Akihiro Tamaki, Junro Ishizaki, Ayana Ishizaki, Mitsuhiro Kida, Chika Kusano; Clin Endosc 2024;57(1):89-95. Published online April 18, 2023; DOI: https://doi.org/10.5946/ce.2022.288

Graphical Abstract Abstract PDF PubReader ePub

Background
/Aims: In stereomicroscopic sample isolation processing, the cutoff value (≥4 mm) of stereomicroscopically visible white cores indicates high diagnostic sensitivity. We aimed to evaluate endoscopic ultrasound-guided tissue acquisition (EUS-TA) using a simplified stereomicroscopic on-site evaluation of upper gastrointestinal subepithelial lesions (SELs).
Methods
In this multicenter prospective trial, we performed EUS-TA using a 22-gauge Franseen needle in 34 participants with SELs derived from the upper gastrointestinal muscularis propria, requiring pathological diagnosis. The presence of stereomicroscopically visible white core (SVWC) in each specimen was assessed using stereomicroscopic on-site evaluation. The primary outcome was EUS-TA’s diagnostic sensitivity with stereomicroscopic on-site evaluation based on the SVWC cutoff value (≥4 mm) for malignant upper gastrointestinal SELs.
Results
The total number of punctures was 68; 61 specimens (89.7%) contained stereomicroscopically visible white cores ≥4 mm in size. The final diagnoses were gastrointestinal stromal tumor, leiomyoma, and schwannoma in 76.5%, 14.7%, and 8.8% of the cases, respectively. The sensitivity of EUS-TA with stereomicroscopic on-site evaluation based on the SVWC cutoff value for malignant SELs was 100%. The per-lesion accuracy of histological diagnosis reached the highest level (100%) at the second puncture.
Conclusions
Stereomicroscopic on-site evaluation showed high diagnostic sensitivity and could be a new method for diagnosing upper gastrointestinal SELs using EUS-TA.

Citations

Citations to this article as recorded by

Adverse events of 20–22G second‐generation endoscopic ultrasound‐guided fine‐needle biopsy needles for solid lesions in the upper gastrointestinal tract and adjacent organs: Systematic review and meta‐analysis
Cheng‐ye Pan, Shi‐min Wang, Dong‐hao Cai, Jia‐yi Ma, Shi‐yu Li, Yibin Guo, Sun Jing, Jin Zhendong, Kaixuan Wang
Digestive Endoscopy.2025; 37(5): 490. CrossRef
Case Report: Rare duodenal schwannoma diagnosis and treatment process report
Shan Li, Lingyu Tu, Ting Li, Xiongchuan Pei, Xijin Wang, Yanqing Shi
Frontiers in Oncology.2025;[Epub] CrossRef
Advancements in endoscopic resection of subepithelial tumors: toward safer, recurrence-free techniques
Won Shik Kim, Moon Kyung Joo
Clinical Endoscopy.2025; 58(2): 256. CrossRef
Feasibility of Endoscopic Ultrasound‐Guided Tissue Acquisition for < 20‐mm Upper Gastrointestinal Subepithelial Lesions
Masafumi Watanabe, Kosuke Okuwaki, Tomohisa Iwai, Mitsuhiro Kida, Hiroshi Imaizumi, Kai Adachi, Akihiro Tamaki, Junro Ishizaki, Taro Hanaoka, Chika Kusano
Journal of Gastroenterology and Hepatology.2025; 40(8): 2046. CrossRef
Diagnostic accuracy of stereomicroscopy assessment of invasion depth in ex vivo specimens of early gastric cancer
Jing Wang, Lin Chang, Dong-Feng Niu, Yan Yan, Chang-Qi Cao, Shi-Jie Li, Qi Wu
World Journal of Gastroenterology.2025;[Epub] CrossRef
What method can we choose if rapid on-site evaluation is not available for the endoscopic ultrasound-guided tissue acquisition of upper gastrointestinal subepithelial lesions?
Yu Kyung Cho
Clinical Endoscopy.2024; 57(1): 53. CrossRef
Endoscopic Ultrasound-Guided Tissue Acquisition Using Fork-Tip Needle for Subepithelial Lesions: A Single-Center Validation Study
Masafumi Watanabe, Kosuke Okuwaki, Tomohisa Iwai, Mitsuhiro Kida, Hiroshi Imaizumi, Kai Adachi, Akihiro Tamaki, Junro Ishizaki, Taro Hanaoka, Chika Kusano
Digestive Diseases and Sciences.2024; 69(7): 2567. CrossRef
Impact of macroscopic on-site evaluation (MOSE) on accuracy of endoscopic ultrasound-guided fine-needle aspiration/biopsy of solid lesions
Hussein Okasha, Ahmed Ebrahim, Ihab Samih, Mohammed Sayed
International Journal of Gastrointestinal Intervention.2024; 13(3): 98. CrossRef
Role of macroscopic on-site evaluation of endoscopic ultrasound-guided fine-needle aspiration/biopsy: Results of a multicentric prospective study
Hussein H Okasha, Hiwa A Hussein, Khaled M Ragab, Omar Abdallah, Fedoua Rouibaa, Borahma Mohamed, Fahd Ghalim, Mahmoud Farouk, Mohamed Lasheen, Mohamed A Elbasiony, Ahmed E Alzamzamy, Ahmed El Deeb, Hassan Atalla, Mahmoud El-Ansary, Sahar Mohamed, Moaz El
World Journal of Gastrointestinal Endoscopy.2024; 16(11): 595. CrossRef
An Esophageal Leiomyoma with Cystic Degeneration Mimicking a Malignant Neoplasm
Gwang Ha Kim, Dong Chan Joo, Moon Won Lee, Bong Eun Lee, Kyungbin Kim
The Ewha Medical Journal.2023;[Epub] CrossRef

5,252 View
182 Download
10 Web of Science
10 Crossref

Linear Array Endoscopic Ultrasonography: Eun Young Kim, M.D.; Korean J Gastrointest Endosc 2009;38(1):1-8. Published online January 30, 2009

Abstract PDF: Endoscopic ultrasonography (EUS) was first developed to observe the pancreas more clearly without interference from the air and the abdominal wall. EUS is currently being used as an important diagnostic and therapeutic tool for various gastrointestinal diseases. Until recently, a radial echoendoscope with a vertical scanning plane has been mainly used, but a linear echoendoscope (linear EUS) with a parallel scanning plane has been recently developed. With the introduction of linear EUS, it is possible to perform many interventional procedures, including fine needle aspiration, and the field of EUS has been greatly expanded. This article briefly reviews the accepted procedures and the new trials using linear EUS. (Korean J Gastrointest Endosc 2009;38:1-8)

2,389 View
14 Download

First
Prev
Page of 1
Next
Last

Search