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Hyeong Seok Nam 2 Articles
A large and pedunculated inflammatory pseudotumor with pseudosarcomatous change of the cecum mimicking a malignant polyp: a case report and literature review
Jong Suk Oh, Hyung Wook Kim, Su Bum Park, Dae Hwan Kang, Cheol Woong Choi, Su Jin Kim, Hyeong Seok Nam, Dae Gon Ryu
Clin Endosc 2023;56(1):119-124.   Published online July 19, 2021
DOI: https://doi.org/10.5946/ce.2021.081
AbstractAbstract PDFPubReaderePub
Inflammatory pseudotumor (IPT) is a rare benign tumor of unknown etiology that can occur in almost any organ system. It has neoplastic features such as local recurrence, invasive growth, and vascular invasion, leading to the possibility of malignant sarcomatous changes. The clinical presentations of colonic IPT may include abdominal pain, anemia, a palpable mass, and intestinal obstruction. A few cases of colonic IPT have been reported, but colonic IPT with pedunculated morphology is very rare. Furthermore, since it can mimic malignant polyps, understanding the endoscopic findings of colonic IPT is important for proper treatment. Herein, we present a case of colonic IPT with pseudosarcomatous changes, presenting as a large polyp, mimicking a malignant polyp in the cecum, along with a literature review.
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Current Status of Biliary Metal Stents
Hyeong Seok Nam, Dae Hwan Kang
Clin Endosc 2016;49(2):124-130.   Published online February 25, 2016
DOI: https://doi.org/10.5946/ce.2016.023
AbstractAbstract PDFPubReaderePub
Many advances have been achieved in biliary stenting over the past 30 years. Endoscopic stent placement has become the primary management therapy to relieve obstruction in patients with benign or malignant biliary tract diseases. Compared with plastic stents, a self-expandable metallic stent (SEMS) has been used for management in patients with malignant strictures because of a larger lumen and longer stent patency. Recently, SEMS has been used for various benign biliary strictures and leaks. In this article, we briefly review the characteristics of SEMS as well as complications of stent placement. We review the current guidelines for managing malignant and benign biliary obstructions. Recent developments in biliary stenting are also discussed.

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  • Side-by-side placement of bilateral endoscopic metal stents for the treatment of postoperative biliary stricture
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    Clinical Journal of Gastroenterology.2017; 10(1): 68.     CrossRef
  • Asia-Pacific consensus guidelines for endoscopic management of benign biliary strictures
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  • Current challenges in optimizing systemic therapy for patients with pancreatic cancer: expert perspectives from the Australasian Gastrointestinal Trials Group (AGITG) with invited international faculty
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  • 27 Crossref
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