scholarly journals Diagnostic ability of a 22G Franseen needle in endoscopic ultrasound‑guided fine needle aspiration of subepithelial lesions

Author(s):  
Akashi Fujita ◽  
Shomei Ryozawa ◽  
Masanori Kobayashi ◽  
Ryuichiro Araki ◽  
Koji Nagata ◽  
...  
Pancreatology ◽  
2016 ◽  
Vol 16 (4) ◽  
pp. S75
Author(s):  
Takashi Hirayama ◽  
Kazuo Hara ◽  
Nobumasa Mizuno ◽  
Susumu Hijioka ◽  
Hiroshi Imaoka ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Mika Takasumi ◽  
Takuto Hikichi ◽  
Minami Hashimoto ◽  
Jun Nakamura ◽  
Tsunetaka Kato ◽  
...  

Background and Aim. A wet suction technique (“wet” technique) has been developed to improve the quality of endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) for sampling various solid lesions. However, no studies have reported on the wet technique for EUS-FNA for gastrointestinal (GI) subepithelial lesions (SELs). We conducted a pilot randomized crossover trial to explore whether the wet technique could be useful with regard to tissue adequacy of upper GI-SELs (UGI-SELs) compared to the conventional EUS-FNA technique (“dry” technique). Methods. Twenty-six patients with UGI-SELs indicated for EUS-FNA were randomly assigned to the dry-first arm using the dry technique for the first two passes or the wet-first arm using the wet technique for the first two passes using a cross-over design with a ratio of 1 : 1. The primary endpoint was the cellularity score of the EUS-FNA specimens rated on a 4-point scale (0-3). The secondary endpoints were the factors influencing cellularity in each suction technique. Results. The mean cellularity score was 1.65 ± 1.20 for the wet technique and 2.00 ± 0.98 for the dry technique ( p = 0.068 ). Logistic regression analysis showed that higher cellularity may be related to the final diagnosis of gastrointestinal stromal tumors in the dry technique and the SEL location in the upper stomach in the wet technique. Conclusion. The wet EUS-FNA technique failed to show a potential for improved cellularity of specimens compared to the dry technique for UGI-SELs.


2014 ◽  
Vol 79 (5) ◽  
pp. AB406
Author(s):  
Ko Watanabe ◽  
Takuto Hikichi ◽  
Tadayuki Takagi ◽  
Masaki Sato ◽  
Rei Suzuki ◽  
...  

2014 ◽  
Vol 23 (4) ◽  
pp. 405-412 ◽  
Author(s):  
Kazuya Akahoshi ◽  
Masafumi Oya ◽  
Tadashi Koga ◽  
Hidenobu Koga ◽  
Yasuaki Motomura ◽  
...  

Background & Aims: There is no evidence of postoperative metastasis of gastric gastrointestinal stromal tumors (GISTs) smaller than 2 cm. The aim of this study was to evaluate the clinical usefulness of endoscopic ultrasound guided fine needle aspiration (EUS-FNA) for gastric subepithelial lesions (SELs) smaller than 2 cm.Patients and methods: Using a prospectively maintained EUS-FNA database, 90 consecutive EUS-FNAs of gastric hypoechoic solid SELs smaller than 2 cm diagnosed by EUS were evaluated retrospectively. The reference standards for the final diagnosis were surgery (n=44) and/or clinical follow-up (n=46) using esophagogastroduodenoscopy (EGD), CT, and/or ultrasonography (US). Additionally, immunophenotyping of specimens obtained by EUS-FNA and surgical resection specimens were compared.Results: The diagnostic rate of EUS-FNA for gastric hypoechoic solid SELs smaller than 2 cm was 73% (66/90). Histological diagnosis of EUS-FNA showed 47 (52%) malignant SELs (44 GISTs, 1 glomus tumor, 1 SEL like cancer, and 1 malignant lymphoma), 19 (21%) benign SELs (14 leiomyomas, 4 ectopic pancreas, and 1 neurinoma), and 24 (27%) indeterminate SELs. In 44 surgically resected cases, the diagnostic accuracy of EUS-FNA using immunohistochemical analysis was 98% (43/44). There were no complications. Appropriate 5 out of 66 SELs (98%) diagnosed by definitive EUS-FNA. After surgery, there was no recurrence of malignant SELs.Conclusions: EUS-FNA is an accurate and safe method in the pre-therapeutic diagnosis of gastric SELs smaller than 2 cm. EUS-FNA for gastric SELs smaller than 2 cm is a promising way to permit early management of patients with gastric SELs including GIST.Abbreviations: EGD: esophagogastroduodenoscopy; EUS: endoscopic ultrasonography; EUS-FNA:endoscopic ultrasound-guided fine needle aspiration; GIST: gastrointestinal stromal tumor; HPF: high power field; SEL: subepithelial lesion; SMT: submucosal tumor.


2021 ◽  
Vol 09 (01) ◽  
pp. E96-E101
Author(s):  
Fumitaka Niiya ◽  
Yuichi Takano ◽  
Tetsushi Azami ◽  
Takahiro Kobayashi ◽  
Naotaka Maruoka ◽  
...  

Abstract Background and study aims The diagnosis of malignant lymphoma (ML) is sometimes difficult, especially in patients with primary splenic malignant lymphomas (psML) which have no lymph nodes capable of acting as the biopsy target. We carried out endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) for “splenic parenchyma” in patients suspected of having a psML, even without any obvious neoplastic lesions in the spleen. Patients and methods A retrospective study using medical records was conducted of eight patients suspected of having a psML that received EUS-FNA for the splenic parenchyma between January 2016 and January 2019. Data analyzed included clinical background, EUS-FNA procedure (puncture needle/route), diagnostic ability (pathological/flow cytometry [FCM]), and complications. Results EUS-FNA was performed from the stomach in all eight cases, and no patients had complications. As a result of splenic parenchymal biopsy found on EUS-FNA, 75 % of patients (6/8) were histologically diagnosed with MLs, monoclonality of B-cells was identified in all cases (8/8) with FCM, and all patients (8/8) were definitively diagnosed with psMLs. Conclusion EUS-FNA for “splenic parenchyma” is useful for patients with spML, even if they have no obvious neoplastic lesions in the spleen.


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