Clinical Endoscopy

Strongyloidiasis Presenting as Yellowish Nodules in Colonoscopy of an Immunocompetent Patient: Hannah Ra, Jun-Won Chung, Dong Hae Chung, Jung Ho Kim, Yoon Jae Kim, Kyoung Oh Kim, Kwang An Kwon, Dong Kyun Park; Clin Endosc 2019;52(1):80-82. Published online August 30, 2018; DOI: https://doi.org/10.5946/ce.2018.078

Strongyloides stercoralis is endemic to tropical and subtropical regions, and infections are usually asymptomatic. However, immunocompromised patients, such as those receiving immunosuppressive therapy, high-dose steroids, or chemotherapy, can develop fatal hyperinfections. An 84-year-old man without any symptoms was diagnosed with strongyloidiasis during a regular screening colonoscopy. His medical history only involved a gastric endoscopic submucosal dissection for early gastric cancer 6 months previously. Few cases have been published about asymptomatic strongyloidiasis diagnosed in an immunocompetent host via endoscopic mucosal resection with characteristic colonoscopic findings. We report a case of colon-involved asymptomatic strongyloidiasis with specific colonic findings of yellowish-white nodules. This finding may be an important marker of S. stercoralis infection, which could prevent hyperinfections.

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Severe strongyloidiasis: a systematic review and meta-analysis of 339 cases
Olga C Rojas, Alexandra M Montoya, Hiram Villanueva-Lozano, Diego Carrion-Alvarez
Transactions of The Royal Society of Tropical Medicine and Hygiene.2023; 117(10): 682. CrossRef
Seropositivity Rates of Strongyloides stercoralis Antibody in the Southeastern Region of Republic of Korea: A Single-Center Retrospective Study
Taehwa Kim, Seungjin Lim
The Korean Journal of Parasitology.2022; 60(3): 181. CrossRef
Phylogenetic Positioning of a Strongyloides stercoralis Isolate Recovered from a Korean Patient and Comparison with Other Asian Isolates
Jaeho Bae, Mi Jin Jeong, Dong hoon Shin, Hyun Woo Kim, Sung Ho Ahn, Jun Ho Choi, Hak Sun Yu
The Korean Journal of Parasitology.2020; 58(6): 689. CrossRef

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Synchronous Peripancreatic Lymph Node Gastrinoma and Gastric Neuroendocrine Tumor Type 2: Hee Woo Lee, Jun-Won Chung, Yoon Jae Kim, Kwang Ahn Kwon, Eui Joo Kim, Keon Kuk Kim, Woon Ki Lee, Sun Jin Sym; Clin Endosc 2016;49(5):483-487. Published online May 20, 2016; DOI: https://doi.org/10.5946/ce.2016.008

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A 34-year-old man was referred to our hospital with gastric polypoid lesions and biopsy-confirmed neuroendocrine tumor (NET). Computed tomography (CT) revealed a 3×3.5×8-cm retroperitoneal mass behind the pancreas, with multiple hepatic metastases. His serum gastrin level was elevated to 1,396 pg/mL. We performed a wedge resection of the stomach, a right hemi-hepatectomy, and a retroperitoneal mass excision. After careful review of the clinical, radiological, histopathological, and immunohistochemical findings, peripancreatic gastrinoma, and synchronous gastric NET were ultimately diagnosed. We reviewed a CT scan that had been performed 6 years previously after surgery for a duodenal perforation. There was no evidence of gastric or hepatic lesions, but the retroperitoneal mass was present at the same site. Had gastrinoma been detected earlier, our patient could have been cured using less invasive treatment. This case demonstrates how important it is to consider Zollinger-Ellison syndrome in patients with a recurrent or aggressive ulcer.

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Insights into Effects/Risks of Chronic Hypergastrinemia and Lifelong PPI Treatment in Man Based on Studies of Patients with Zollinger–Ellison Syndrome
Lingaku Lee, Irene Ramos-Alvarez, Tetsuhide Ito, Robert T. Jensen
International Journal of Molecular Sciences.2019; 20(20): 5128. CrossRef
Diagnosis of Zollinger–Ellison Syndrome in the Era of Ppis, Faulty Gastrin Assays, Sensitive Imaging and Limited Access to Acid Secretory Testing
David C Metz, Guillaume Cadiot, Pierre Poitras, Tetsuhide Ito, Robert T Jensen
International Journal of Endocrine Oncology.2017; 4(4): 167. CrossRef

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Can Body Mass Index Predict the Difficulty of Colonoscopy?: Eui Joo Kim, Yoon Jae Kim; Clin Endosc 2016;49(2):106-107. Published online March 21, 2016; DOI: https://doi.org/10.5946/ce.2016.042

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Efficacy, safety, and tolerability of a ready-to-drink bowel preparation in overweight and obese adults: subanalysis by body mass index from a phase III, assessor-blinded study
Lawrence Hookey, Gerald Bertiger, Kenneth Lee Johnson, Mena Boules, Masakazu Ando, David N. Dahdal
Therapeutic Advances in Gastroenterology.2020;[Epub] CrossRef

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Intestinal Capillariasis Diagnosed by Endoscopic Biopsy: Minsu Ha, Dong-Ha Jun, Jung Ho Kim, Yoon Jae Kim, Kwang An Kwon, Dong Kyun Park, Yang Suh Ku; Clin Endosc 2013;46(6):675-678. Published online November 19, 2013; DOI: https://doi.org/10.5946/ce.2013.46.6.675

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Many new parasitic infections have emerged in Korea, with >35 new species appearing since the 1980s. Among them, Capillaria species are unique for contributing to morbidity in many countries as well as in Korea. Since the first reported case of a 41-year-old male patient diagnosed with intestinal capillariasis in 1991, a total of six cases have been reported thus far. In this case report, we present another imported case of intestinal capillariasis in Korea, in which a 42-year-old male patient presented with intractable diarrhea and weight loss. The diagnosis was confirmed by biopsy of the ileum. The pathognomonic radiographic presentation of a ribbon-like appearance in a small bowel series was crucial in raising an early suspicion of capillariasis and in deciding to perform diagnostic biopsy.

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Imported parasitic diseases in the Republic of Korea: status and issues
Jong-Yil Chai
Journal of the Korean Medical Association.2025; 68(1): 52. CrossRef
Human parasitic infections of the class Adenophorea: global epidemiology, pathogenesis, prevention and control
Jitrawadee Intirach, Chang Shu, Xin Lv, Suzhen Gao, Nataya Sutthanont, Tao Chen, Zhiyue Lv
Infectious Diseases of Poverty.2024;[Epub] CrossRef
An Overview of Fish-borne Nematodiases among Returned Travelers for Recent 25 Years– Unexpected Diseases Sometimes Far Away from the Origin
Jorge Costa Eiras, Gilberto Cezar Pavanelli, Ricardo Massato Takemoto, Yukifumi Nawa
The Korean Journal of Parasitology.2018; 56(3): 215. CrossRef

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