|Title:||EUS for biliopancreatic tissue acquisition||Authors:||TSU-YAO CHENG||Keywords:||Biliary tumor | EUS-FNA | Fanning technique Non-suction technique | Pancreatic ductal adenocarcinoma | Pancreatic neuroendocrine tumor | Peripheral sampling technique | Slow-pull technique||Issue Date:||1-Jan-2018||Source:||Biliopancreatic Endoscopy: Practical Application||Abstract:||
© Springer Nature Singapore Pte Ltd. 2018. Endoscopic ultrasound (EUS) along with fine-needle aspiration (FNA) has become a popular method and safe bridge to accurate tissue diagnosis for biliopancreatic tissue acquisition. EUS-FNA can alter patient management after a definite cytopathologic diagnosis or tumor staging, and it also has an impact on facilitating medical decision-making of both patients and physicians. EUS-FNA procedure involves the aspiration of cell samples by passing an aspiration needle through the working channel of a curvilinear echoendoscope under real-time guidance into an EUS visualized lesion. Various techniques such as peripheral sampling and fanning aspiration have been developed and can improve the diagnostic accuracy and efficiency of the EUS-FNA tissue acquisition. EUSFNA can be performed from either the trans-duodenal or the trans-gastric approach for pancreatic tumors at the head or body and tail, respectively. Besides, EUS can evaluate the biliary tract and associated tumors from the ampulla to the bifurcation. Being superior to ERCP tissue sampling in pancreatic tumors, EUS-FNA has comparable sensitivity to ERCPrelated methods for biliary tumors in evaluating suspected malignant biliary obstruction.
|Appears in Collections:||醫學院附設醫院 (臺大醫院)|
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