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Deepanshu Jain,Assaf Stein,Muhammad K. Hasan 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.4
Self-expanding metal stents play a crucial role in the management of patients with biliary obstruction. Endoscopic extraction ofuncovered metal stents (UCMSs) and partially covered metal stents (PCMSs) could be challenging because of tissue ingrowth. Nostandardized technique can guarantee universal success. We present our technique and experience of endoscopic extraction of biliarystents in two patients with a UCMS and three patients with a PCMS. Three of the five patients had a previous failed attempt of stentextraction at an outside hospital. Overall, our composite success rate was 80% (4/5). The individual success rate was 100% (3/3) forPCMSs and 50% (1/2) for UCMSs. The stent-in-stent technique, in which a fully covered metal stent is placed through an existingUCMS/PCMS, was used in 60% (3/5) of the cases, with a success rate of 66.7% (2/3). We share our algorithmic approach to eachcase, with detailed emphasis on the technical aspects of the procedure.
Endoscopic Ultrasound-Guided Fine Needle Aspiration in Cystic Pancreatic Lesions
Robert H. Hawes,James Clancy,Muhammad K. Hasan 대한소화기내시경학회 2012 Clinical Endoscopy Vol.45 No.2
Incidental pancreatic cysts are being increasingly recognized recently with incremented concern about health and frequent health checkup. Endoscopic ultrasound (EUS) has emerged as the principal modality for imaging pancreas for various pancreatic diseases including pancreatic cyst. But imaging alone cannot accurately identify the exact nature of the pancreatic cyst. EUS-guided fine needle aspiration is a useful adjunctive procedure to differentiate pancreatic cystic lesions. Cystic fluid analysis with cytologic evaluation is important to diagnose etiology of pancreatic cystic lesions, helping the clinician to more accurately assess the presence or potential for malignancy.