Gastroenterology / Image of interest Unusual polypoid mass in the colon Seung-Woo Lee, Jong Ok Kim Korean J Intern Med. 2025;40(3):524-525.   Published online February 17, 2025 DOI: https://doi.org/10.3904/kjim.2024.327

Gastroenterology / Original Article Medical disputes involving lower gastrointestinal endoscopies: cases from the Korean Medical Dispute Mediation and Arbitration Agency Eun Hye Oh, Jeong Eun Shin, Jun Yong Bae, Yoon Suk Lee, Yehyun Park, Yong Hwan Kwon, Chang Nyol Paik, Jun Kyu Lee, Tae Hee Lee Korean J Intern Med. 2025;40(3):404-426.   Published online April 30, 2025 DOI: https://doi.org/10.3904/kjim.2024.343       Background/Aims: As the number of lower gastrointestinal endoscopies and high-risk examinees increases, the incidence of adverse events associated with these endoscopies has also increased. Medical disputes and lawsuits related to adverse events are rapidly increasing. Methods: Medical disputes rel..

Gastroenterology / Original Article Endoscopic features of cytomegalovirus disease of the upper gastrointestinal tract between transplant and non-transplant patients Yuri Kim, Do Hoon Kim, Myeongsook Seo, Hee Kyong Na, Kee Wook Jung, Ji Yong Ahn, Jeong Hoon Lee, Kee Don Choi, Ho June Song, Gin Hyug Lee, Hwoon-Yong Jung Korean J Intern Med. 2025;40(3):394-403.   Published online March 25, 2025 DOI: https://doi.org/10.3904/kjim.2024.250                 Background/Aims: Cytomegalovirus (CMV) disease in the upper gastrointestinal (UGI) tract frequently occurs in immunocompromised patients. However, data regarding UGI CMV disease in non-transplant patients compared with those in transplant recipients are limited. Therefore, we compared the clinical c..

Gastroenterology / Review Herpes zoster infection in patients with inflammatory bowel disease Dong Hyun Kim, Sang-Bum Kang Korean J Intern Med. 2025;40(3):347-356.   Published online April 30, 2025 DOI: https://doi.org/10.3904/kjim.2024.342       Patients with inflammatory bowel disease (IBD) are at increased risk of herpes zoster (HZ), particularly those receiving immunosuppressive treatments such as corticosteroids, thiopurines, and biologics, which elevate the likelihood of varicella-zoster virus reactivation. Despite this, vaccination ra..

Gastroenterology / Editorial Tissue-invasive upper gastrointestinal cytomegalovirus disease in transplant and non-transplant patients Seokin Kang Korean J Intern Med. 2025;40(3):343-344.   Published online April 30, 2025 DOI: https://doi.org/10.3904/kjim.2025.096

Gastroenterology / Original Article Characteristics and outcomes of portal vein thrombosis in patients with inflammatory bowel disease in Korea Ki Jin Kim, Su-Bin Song, Jung-Bin Park, June Hwa Bae, Ji Eun Baek, Ga Hee Kim, Min-Jun Kim, Seung Wook Hong, Sung Wook Hwang, Dong-Hoon Yang, Byong Duk Ye, Jeong-Sik Byeon, Seung-Jae Myung, Suk-Kyun Yang, Chang Sik Yu, Yong-Sik Yoon, Jong-Lyul Lee, Min Hyun Kim, Ho-Su Lee, Sang Hyoung Park Korean J Intern Med. 2025;40(2):243-250.   Published online December 23, 2024 DOI: https://doi.org/10.3904/kjim.2024.181                 Background/Aims: Portal vein thrombosis (PVT) frequently occurs in patients with inflammatory bowel disease (IBD), particularly when influenced by factors such as abdominal infections, IBD flare-ups, or surgical procedures. The implications of PVT range from immediate issues such as intestinal ische..

Gastroenterology / Original Article Clinical outcomes of esophageal squamous cell carcinoma in patients aged over 80 years Dae Gon Ryu, Cheol Woong Choi, Su Jin Kim, Su Bum Park, Jin Ook Jang, Bong Soo Son Korean J Intern Med. 2025;40(2):230-242.   Published online February 21, 2025 DOI: https://doi.org/10.3904/kjim.2024.201              Crossref 1                 Background/Aims: The clinical outcomes and optimal treatment of esophageal squamous cell carcinoma (ESCC) in elderly patients are unclear. This study aimed to assess the clinical outcomes of ESCC in patients aged ≥ 80 years. Methods: Medical records of patients diagnosed with ESCC between Decembe..

Gastroenterology / Review Metabolic musculoskeletal disorders in patients with inflammatory bowel disease Young Joo Yang, Seong Ran Jeon Korean J Intern Med. 2025;40(2):181-195.   Published online March 1, 2025 DOI: https://doi.org/10.3904/kjim.2024.359                 Inflammatory bowel disease (IBD), which includes Crohn’s disease and ulcerative colitis, is a chronic inflammatory disorder that affects not only the gastrointestinal tract but also extraintestinal organs, leading to various extraintestinal manifestations and complications. Among these, musculoske..

Gastroenterology / Review Role of endoscopic ultrasound in the diagnosis and local ablative therapy of pancreatic neuroendocrine tumors Yun Je Song, Jun Kyeong Lim, Jun-Ho Choi Korean J Intern Med. 2025;40(2):170-180.   Published online February 25, 2025 DOI: https://doi.org/10.3904/kjim.2024.293                 Advancements in diagnostic technology have led to the improved detection of pancreatic neuroendocrine tumors (PNETs) and thus to an increase in the number of reported cases. Endoscopic ultrasound (EUS) technology, including in combination with contrast-enhanced harmonic imaging, aids in distinguishi..

Gastroenterology / Editorial Treatment strategies for octogenarians with esophageal cancer: changing age-based treatment paradigms Jaewon Hyung Korean J Intern Med. 2025;40(2):165-167.   Published online March 1, 2025 DOI: https://doi.org/10.3904/kjim.2025.029

Gastroenterology / Original Article Association between acid-suppressive drugs and risk of psoriasis: retrospective study using Korean National Health Insurance Service-National Sample Cohort Ji Hyun Kim, Joon-hong Min, Young Woo Jo, Jae Woo Kwon, Young Her Korean J Intern Med. 2025;40(1):57-64.   Published online January 1, 2025 DOI: https://doi.org/10.3904/kjim.2024.096                 Background/Aims: Psoriasis is a common inflammatory skin disorder following non-specific triggers. Involvement of immune system is widely accepted for pathogenesis studies have demonstrated importance of gut microbiota in pathogenesis of inflammatory skin diseases. Proton pump inhibitor (PPI) and hi..

Gastroenterology / Original Article Incidence and risk factors of immune checkpoint inhibitor-induced colitis in Korean patients with cancer Tae Kyun Kim, Hyun Seok Lee, Eun Soo Kim Korean J Intern Med. 2025;40(1):49-56.   Published online January 1, 2025 DOI: https://doi.org/10.3904/kjim.2024.135              Web of Science 1    Crossref 2                 Background/Aims: Immune checkpoint inhibitors (ICIs) are effective in treating cancer. However, various immune-related adverse events (irAEs) have become prevalent, with ICI-induced colitis being the most common gastrointestinal irAE. Thus, we aimed to investigate the incidence and risk factors of I..

Gastroenterology / Editorial Who is at risk for immune checkpoint inhibitor-induced colitis among Korean patients? Ji Hyun Kim, Sung Chul Park Korean J Intern Med. 2025;40(1):3-4.   Published online January 1, 2025 DOI: https://doi.org/10.3904/kjim.2024.417

Gastroenterology / Original Article Evolving epidemiology of non-alcoholic fatty liver disease in South Korea: incidence, prevalence, progression, and healthcare implications from 2010 to 2022 Jae Woo Park, Jeong-Ju Yoo, Dong Hyeon Lee, Young Chang, Hoongil Jo, Young Youn Cho, Sangheun Lee, Log Young Kim, Jae Young Jang; the Korean Association for the Study of the Liver Korean J Intern Med. 2024;39(6):931-944.   Published online October 24, 2024 DOI: https://doi.org/10.3904/kjim.2024.164              Crossref 2                      Background/Aims: Non-alcoholic fatty liver disease (NAFLD), now the most common chronic liver worldwide, has become a significant public health concern. This study aims to analyze the evolving epidemiology of NAFLD in South Korea. Methods: We utilized claim data from the Korean National Health Insu..

Gastroenterology / Original Article The role of PD-1/PD-L1 pathway in ulcerative colitis and changes following tonsil-derived mesenchymal stem cells treatment Eun Mi Song, Yang Hee Joo, Sung-Ae Jung, Ju-Ran Byeon, A-Reum Choe, Yehyun Park, Chung Hyun Tae, Chang Mo Moon, Seong-Eun Kim, Hye-Kyung Jung, Ki-Nam Shim Korean J Intern Med. 2024;39(6):917-930.   Published online November 1, 2024 DOI: https://doi.org/10.3904/kjim.2024.019                      Background/Aims: The programmed death 1 (PD-1)/programmed death-ligand 1 (PD-L1) pathway has not been fully evaluated in inflammatory bowel disease. We evaluated PD-1/PD-L1 levels in patients with ulcerative colitis (UC) and their significance in tonsil-derived mesenchymal stem cells (TMSCs) treatme..

Gastroenterology / Original Article Tight junction protein changes in irritable bowel syndrome: the relation of age and disease severity Sang Un Kim, Ji A Choi, Man-Hoon Han, Jin Young Choi, Ji Hye Park, Moon Sik Kim, Yong Hwan Kwon Korean J Intern Med. 2024;39(6):906-916.   Published online November 1, 2024 DOI: https://doi.org/10.3904/kjim.2024.097                      Background/Aims: The etiology of irritable bowel syndrome (IBS) is associated with intestinal mucosal barrier damage. However, changes in the tight junction (TJ) proteins in IBS have not been fully elucidated. This study aimed to evaluate TJ protein changes in IBS patients and the relationship betwe..

Gastroenterology / Editorial Understanding the epidemiology of metabolic dysfunction-associated steatotic liver disease is essential for its management: need for attention to accurate diagnostic coding and classification Han Ah Lee Korean J Intern Med. 2024;39(6):869-871.   Published online November 1, 2024 DOI: https://doi.org/10.3904/kjim.2024.351

Gastroenterology / Image of interest A case of esophagogastric junctional outlet obstruction caused by thoracic aortic aneurysm Jin Ook Jang, Tae Un Kim, Hwaseong Ryu, Byung-Soo Park, Su Jin Kim Korean J Intern Med. 2024;39(5):867-868.   Published online May 22, 2024 DOI: https://doi.org/10.3904/kjim.2024.084

Gastroenterology / Image of interest Acute pancreatitis by huge gastric phytobezoar Dong-Ge Han, Yi-Xue Zhou, Wei Liu Korean J Intern Med. 2024;39(5):865-866.   Published online May 27, 2024 DOI: https://doi.org/10.3904/kjim.2024.056              Web of Science 1    Crossref 1

Gastroenterology / Original Article Perception of fecal microbiota transplantation in patients with ulcerative colitis in Korea: a KASID multicenter study Jebyung Park, Sung Noh Hong, Hong Sub Lee, Jongbeom Shin, Eun Hye Oh, Kwangwoo Nam, Gyeol Seong, Hyun Gun Kim, Jin-Oh Kim, Seong Ran Jeon; The Small Intestine Research Group and the Microbiome Research Group of the Korean Association for the Study of Intestinal Diseases (KASID) Korean J Intern Med. 2024;39(5):783-792.   Published online August 30, 2024 DOI: https://doi.org/10.3904/kjim.2024.053              Web of Science 2    Crossref 2                      Background/Aims: Fecal microbiota transplantation (FMT) is a promising therapy for inducing and maintaining remission in patients with ulcerative colitis (UC). However, FMT has not been approved for UC treatment in Korea. Our study aimed to investigate patient perceptions of FMT under the national m..