Peritoneal carcinomatosis (PC) is defined as a metastatic involvement of the peritoneum by several other primary sites and it is characterized by a marked worsening of prognosis, with limited treatment opportunities. Subsequently, PC should be ruled out before any invasive treatment is administered. A new through-the-needle micro-biopsy forceps (MF) was recently introduced that permits micro-histology cores. In this case series, we evaluated the feasibility of MF in the assessment of PC to complete patient diagnostic work-ups. Five consecutive patients referred for endoscopic ultrasound staging were sampled using MF. Sampling was feasible in all patients with a technical success of 100%. No adverse events were reported in any cases. This technique was feasible and safe with a technical success rate of 100%. It permitted sampling of peritoneal irregularity, obtained high-quality tissue fragments in all cases, and enabled an additional assessment, i.e., immunohistochemical staining.
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Current perspectives on the diversification of endoscopic ultrasound-guided fine-needle aspiration and biopsy Shinpei Doi, Takako Adachi, Ayako Watanabe, Nobuhiro Katsukura, Takayuki Tsujikawa Journal of Medical Ultrasonics.2024; 51(2): 235. CrossRef
Endoscopic ultrasound guided fine needle biopsy (EUS-FNB) from peritoneal lesions: a prospective cohort pilot study Pradermchai Kongkam, Theerapat Orprayoon, Sirilak Yooprasert, Nakarin Sirisub, Naruemon Klaikaew, Anapat Sanpawat, Shahram Safa, Wiriyaporn Ridtitid, Pinit Kullavanijaya, Rungsun Rerknimitr BMC Gastroenterology.2021;[Epub] CrossRef
Germana de Nucci, Maria Chiara Petrone, Nicola Imperatore, Edoardo Forti, Roberto Grassia, Silvia Giovanelli, Laura Ottaviani, Vincenzo Mirante, Giuseppe Sabatino, Carlo Fabbri, Mauro Manno, Paolo Giorgio Arcidiacono, Gianpiero Manes
Clin Endosc 2021;54(2):229-235. Published online May 25, 2020
Background /Aims: Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is the go-to method for obtaining samples from gastrointestinal tract and pancreatic lesions. When the transduodenal approach is utilized, the use of a more flexible needle, such as a nitinol 19-gauge (G) needle, has been recommended. The aim of this study was to evaluate the feasibility and accuracy of 19-G flexible aspiration needles in obtaining samples from solid lesions through a transduodenal approach.
Methods This was a retrospective analysis of prospectively collected data from eight Italian endoscopy centers. Consecutive patients with solid lesions who underwent transduodenal EUS-FNA with a 19-G flexible needle were included.
Results A total of 201 patients were enrolled. According to histology, EUS, radiology and 12 months of follow-up, 151 patients had malignant lesions and 50 patients had benign lesions. EUS-FNA was feasible in all cases. An adequate histologic sample was obtained in all except eight cases (96.1%). The sensitivity of EUS-FNA was 92.1% (95% confidence interval [CI], 86.8%–95.7%), and the specificity was 100% (95% CI, 90.5%–100%). The positive predictive value was 100% (95% CI, 93.4%–100%), and the negative predictive value was 74% (95% CI, 62.8%–82.7%). The diagnostic accuracy was 93.5% (95% CI, 89.2%–96.5%).
Conclusions The transduodenal approach for obtaining samples from solid lesions using a 19-G flexible needle seems feasible and accurate.
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Effect of wet-heparinized suction on the quality of mediastinal solid tumor specimens obtained by endoscopic ultrasound-guided fine-needle aspiration: a retrospective study from a single center Bo Xu, Qian Lu, Rong Fang, Xiaojuan Dai, Haiyan Xu, Xiangwu Ding, Huawei Gui BMC Gastroenterology.2023;[Epub] CrossRef
Comparison of Endoscopic Ultrasound-Guided Fine Needle Aspiration with 19-Gauge and 22-Gauge Needles for Solid Pancreatic Lesions Changjuan Li, Jianwei Mi, Fulai Gao, Xinying Zhu, Miao Su, Xiaoli Xie, Dongqiang Zhao International Journal of General Medicine.2021; Volume 14: 10439. CrossRef