차재명 교수

In this study, the rates of major PPCS and mortality were only 2.9 % and 0 %, respectively. Hypertension, large lesion size, and non-polypoid configuration of the lesion were independently associated with PPCS. Therefore, patients may be reassured by the excellent prognosis of PPCS, while endoscopists should be especially careful when performing colonoscopic polypectomies in patients with hypertension or large and non-polypoid lesions.

Plasmablastic lymphoma (PBL) is a recently identified entity that is considered to be a type of diffuse large B-cell lymphoma with a unique immunophenotype and a predilection for the oral cavity of patients with the human immunodeficiency virus (HIV). Although its clinical features may help in the differential diagnosis, an extraoral location in a patient without HIV makes it more difficult to suspect clinically. This case report is the first to describe a patient with PBL originating from the j

We report a rare case of giant mesenteric lipoma presenting with colicky abdominal pain. A 29-yr-old woman underwent laparoscopic resection for a giant mesenteric lipoma causing compression of the ileal loop. The resected ileal segment was encased by a giant fatty tissue, and normal mucosal fold patterns of the resected ileum were effaced by the mass. Microscopically, the mass was characterized by homogenous mature adipose tissue without cellular atypia, which was compatible with the diagnosis o

Purpose: The present study was aimed to determine whether endoscopist specialty is associated with high-quality endoscopy. Materials and Methods: We prospectively collected endoscopy quality related data based on the Endoscopy Quality Rating Scale (EQRS) of 277 endoscopy units in a hospital setting from the National Cancer Screening Program of Korea in 2009. Gastroenterology medical professors (n=154) from university hospitals visited each endoscopy unit and graded the unit according to the EQRS

Rectal syphilis, known as a great masquerader, can be difficult to diagnose because of its variable symptoms. Gastroenterologists should be aware of the possibility of rectal syphilis when confronted with anorectal ulcers, and should gather a detailed history about sexual preferences and practices, including homosexuality. We report a case of primary rectal syphilis mimicking rectal cancer on radiologic imaging. In this report, we described the clinical,endoscopic, and radiologic features of thi

Although colorectal granular cell tumors (GCTs) are rare, their incidental finding has increased as the use of diagnostic colonoscopy has become more common. Here we describe the case of a 41-yr-old man with a GCT in the descending colon that was detected after a screening colonoscopy. Endoscopic examination revealed a yellowish submucosal tumor, 13×12 ㎜ in diameter, in the descending colon. Endoscopic mucosal resection (EMR) followed by histological examination revealed that the tumor was compo

The motivation for improving quality of gastrointestinal endoscopy begins with the desire to provide patients with the best possible care. Gastrointestinal endoscopy is an excellent area for quality improvement because of its high volume, significant associated risk and expense, and variability in its performance affecting outcomes. Therefore, the assurance that high-quality endoscopic procedures are performed has taken increased importance. The ‘Korean Gastrointestinal Endoscopy Research Founda

Colonoscopy is currently regarded as the gold standard and preferred screening method for colorectal cancer (CRC). Recently,however, a limitation of colonoscopy in the prevention of CRCs has been identified, particularly in the right-sided colon, andthe problem of so-called interval cancers has emerged. The prevalence of interval cancer is estimated to be between 4% and 8%of CRCs detected. Although the exact etiology of interval cancer remains unknown, factors implicated in the development ofint

Purpose: The present study was aimed at evaluating the usefulness of box simulators for training novice endoscopists. Materials and Methods: An explanation of the goals, contents, and features of the simulator was given to study participants. The participants then received “hands-on training” in gastrointestinal endoscopy techniques using a box simulator. Subsequently, they were asked to answer 19 structured questions about the simulator. Ratings were scored on a scale from 1 to 5 for questions

Cytomegalovirus (CMV) infection is usually subclinical in immunocompetent individuals, however it can be life threatening in an elderly immunocompetent individual. We report a case of CMV enteritis causing ileal perforation in a physically active elderly man. An 88-year-old healthy man presented with abdominal pain and diarrhea. After initial conservative treatment, emergency laparotomy was performed for ileal perforation. The diagnosis of CMV enteritis was based on histological findings reveali

Shared decision-making may increase the effectiveness of inflammatory bowel disease (IBD) treatment, as different anti-tumor necrosis factor (anti-TNF) administrations may have different effects on the quality of life (QOL). Patient preference is integral to the selection of anti-TNFs and their routes of administration, however, previous studies on the patient preference to anti-TNFs are inconsistent and limited. We evaluated the predictive factors for preferences to anti-TNF administrations in

Eosinophilic gastroenteritis (EG) is characterized by eosinophilic infiltration of the bowel wall and variable gastrointestinal manifestations. Clinicians should have a high index of suspicion for EG when faced with gastrointestinal symptoms and peripheral eosinophilia to avoid incorrect diagnosis and inappropriate treatments. A 24-year-old woman was admitted to our hospital complaining of acute right lower quadrant abdominal pain and a laparoscopic appendectomy performed for a presumed diagnosi

Life expectancy in Korea has increased, and the number of screening colonoscopies in the elderly has also dramatically increased. The net benefit of colonoscopy in the very elderly (≥80 years of age as defined by the World Health Organization) may be reduced because of the competing risk of mortality due to other diseases. Therefore, the decision to perform screening colonoscopy may be more complex in this age group. As the potential increase in life expectancy due to screening colonoscopy is si

유암종은 소화관의 장크롬친화세포에서 발생하는 비교적 드문 종양이며, 소화관 유암종들 중 가장 흔한 직장 유암종은 직장 종양의 약 1%를 차지한다. 직장 유암종은 내시경 검사에서 주로 단일 점막하 결절로 관찰되며, 다발성으로 존재하는 경우는 드물다. 직장 유암종의 치료는 병변의 크기와 고유근층으로의 침범 여부 및 원격전이 등에 따라 결정되는데, 다발성 직장 유암종의 경우 각 병변의 크기가 1 cm 미만이며 원격전이가 없는 경우는 각각의 병변을 내시경 절제술과 같은 국소절제술로 치료할 수 있다. 저자들은 타병원에서 직장 유암종을 제거한 후 전원 된 다음, 직장의 다른 부위에서 유암종을 추가로 발견하여 내시경 절제술로 제거한 다발성 직장 유암종 1예를 경험하였기에 이를 보고하는 바이다.