Young Woo Choi

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AIM To investigate prevalence of Clonorchis sinensis in patients with gastrointestinal symptoms, and the relation of the infection to hepatobiliary diseases in 26 hospitals in Korea. METHODS Consecutive patients who had been admitted to the Division of Gastroenterology with gastrointestinal symptoms were enrolled from March to April 2005. Of those who had(More)
Percutaneous vertebroplasty (PVP) is an efficient procedure to treat pain due to osteoporotic vertebral compression fractures (OVCFs). However, some patient populations experience recurrent vertebral fracture after initial successful procedure. There are a lot of literatures about the effectiveness of this procedure but few concerning the development of(More)
We present the case of a liver abscess that formed secondary to foreign bodies and formed a fistula the ascending colon and was successfully treated with percutaneous abscess drainage and colonoscopic removal of foreign bodies. A 64-year-old man presented with right upper and lower quadrant pain of 2 weeks' duration. Abdominal computed tomography was(More)
Colonic lipomas are the most common nonepithelial tumor, and they are the third most common tumor, after hyperplastic and adenomatous polyps (1). The majority of colonic lipomas are small and asymptomatic (2). Large lesions may be significant because of their related symptoms, and especially, intussuscepted colonic lipomas are often confused with malignant(More)
OBJECTIVE To describe the technical feasibility and usefulness of extrahepatic biliary stone removal by balloon sphincteroplasty and occlusion balloon pushing. MATERIALS AND METHODS Fifteen patients with extrahepatic bile duct stones were included in this study. Endoscopic stone removal was not successful in 13 patients, and two patients refused the(More)
PURPOSE Durable complete remission of metastatic renal cell carcinoma (RCC) has rarely been achieved with current treatment modalities. To solve this problem, alternative therapeutic options with high efficacy and minimal side effects are strongly needed. EXPERIMENTAL DESIGN Mesenchymal stem cells (MSC) were engineered to coexpress dodecameric TRAIL and(More)
UNLABELLED T follicular helper (Tfh) cells are specialized providers of cognate B cell help, which is important in promoting the induction of high-affinity antibody production in germinal centers (GCs). Interleukin-6 (IL-6) and IL-21 have been known to play important roles in Tfh cell differentiation. Here, we demonstrate that IL-7 plays a pivotal role in(More)
OBJECTIVE A retrospective review was conducted to determine the availability of anterior lumbar interbody fusion (ALIF) in selected patients who presented with recurrent lumbar disc herniation. METHODS A total of 22 patients who underwent ALIF were studied clinically and radiographically. The patients were 11 men and 11 women, with a mean age of 46 years(More)
BACKGROUND Foreign objects in the gastrointestinal tract are usually the result of accidental swallowing. Yet foreign object ingestion is often seen in prisoners who mainly desire to leave prison. We report here on a series of 33 Korean prisoners with foreign object ingestion and they were treated endoscopically or surgically. METHODS We reviewed the(More)
Colorectal fecaloma is a mass of accumulated feces that is much harder in consistency than a fecal impactation. The rectosigmoid area is the common site for fecalomas and the cecum is the most unusual site. Diagnosis is usually made by distinctive radiographic findings of a mobile intraluminal mass with a smooth outline and no mucosal attachment. Most of(More)