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박영희,김화영,김재일,박석준,이창후,최동환,유인환,어중건,전동하,박주일,강정협,한성민 대한소화기내시경학회 1996 Clinical Endoscopy Vol.16 No.5
Lymphangioma is a benign tumor of lymphatic origin. Lymphangioma can occur anywhere in the body and only rarely affects the intestinal tract. Most intestinal lymphangiomas are asymptomatic and detected incidentally at autopsy or surgery. Occasionally, they may be large enough to present as a mass to cause obstruction or intussusception. Recently, we examined a case of a 27-year-old woman who complained right upper quadrant abdominal pain, increased bowel sound and weight loss. By surgical resection after the double contrast barium enema and colonoscopy, we could confirm cystic lymphangioma of the transverse colon. So we report this case with brief review of relevant literature.
간세포암과 병발한 임상적으로 진단된 궤양성 대장염 1예
박영희,한성민,김화영,김재일,박석준,이창후,김석은,유인환,박주일,강정협,박해규,소순찬,곽경근 대한소화기내시경학회 1997 Clinical Endoscopy Vol.17 No.5
Ulcerative colitis is a diffuse inflammatory disease which is characterized by the vascular congestion and superficial ulcerations in the mucosal and the submucosal layers of the rectum and colon. Extraintestinal manifestations such as arthritis, skin lesion, hepatobiliary and ocular diseases occur in a large number of patients with ulcerative colitis, though gastrointestinal symptoms of mucous and bloody stool, diarrhea and abdominal pain are frequently presented. The association of ulcerative colitis and hepatobiliary disease has been frequently reported in the western countries since the first description by Thomas C.H. in 1874. Fatty degeneration, chronic active hepatitis, cirrhosis, primary sclerosing cholangitis and hepatobiliary carcinoma are included in this list of complications. In the case of hepatobiliary carcinoma, however, the histological diagnosis has almost invariably been cholangiocarcinoma. We report a case of clinical ulcerative colitis with coneurrent hepatocellular carcinoma confirmed by the histologic examination of biopsy specimen in a 49 year old man with the relevant literatures.
조주영,김재일,이문성,심찬섭,유인환,김수경,박주일,전동하,김계혁,어중건,라성찬,한세환 대한소화기내시경학회 1996 Clinical Endoscopy Vol.16 No.6
Mucosal bridge, endoscopically observed, is a cord-like mucosal connection across the lumen. The bridge is very elastic and stretches easily, unlike granulation tissue. Mucosal bridges of the esophagus have been occasionally described in various circumstances, particularly in congenital or acquired origin as the inflammatory diseases. The occurrence of mucosal bridges due to inflammatory process may arise anywhere from the esophagus to the colon. It has been more frequently reported in the colon than in the esophagus, stomach, and duodenum. We experienced four cases of esophageal mucosal bridges and three of them were accompanied by esophageal diverticulum. We report these cases with a review of relevant literatures.
Application of Spray Pyrolysis Process for Production of Ultra Pure and Fine Powder
Yu, Jae-Keun,Park, Hee-Beom,Park, Joo-Il,Han, Jung-Soo,Han, Jin-A,Nam, Yung-Hyeon 호서대학교 반도체제조장비국산화연구센터 2000 학술대회 자료집 Vol.2000 No.1
Newly modified spray pyrolysis system was developed to produce ultra pure and fine powder by spray pyrolysis process. In this system, raw material solution was effectively atomized and sprayed into the reaction furnace. Also, thermal decomposition process fully completed in the three zone reaction furnace, and produced powder was effectively collected. A technology to reduce impurities in complex acid solution below 20ppm was also developed. The characteristics of produced powder were studied by changing the reaction conditions such as reaction temperature, the injection velocity of the solution and air, nozzle tip size and concentration of solution. The morphology of powder had spherical shape under the most experimental conditions, and the composition and the particle size distribution were almost uniform. Under the most experimental conditions average particle size of most produced powder was below 100nm.