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원발성 위 림프종에서 전환된 Burkitt 림프종 세포 백혈병 1 예
윤성준(Seong Joon Yoon),류인열(In Yeol Ryu),이지현(JI Hyun Lee),신원혁(Won Hyuk Sin),이정석(Jeong Seok Lee),최의혁(Eui Hyuk Choi),홍수희(Su Hee Hong),유종훈(Jong Hoon Yoo),이동윤(Dong Yun Lee),이준상(Joon Sang Lee),김지화(Ji Wha Kim) 대한내과학회 1998 대한내과학회지 Vol.54 No.2
Burkitt's lymphoma is a distinct clinical entity classified as an undifferentiated lymphoma of B-lymphocytic origin. Burkitt's lymphoma cell leukemia occurs when Burkitt's lymphoma cells represent more than 20% of marrow cells and exceed about 5000/ul in blood. We report a case of Burkitt's lymphoma cell leukemia in primary gastric lymphoma in 55-year-old man with 5kg of weight loss for 2 months and epigastric pain for 3 days. Primary gastric lymphoma was diagnosed by biopsies with gastrofiberoscopy and upper abdominal CT scan in this patient. During admission, peripheral blood smear revealed sudden increase in abnormal blasts with multiple vacuoles. Burkitt's lymphoma cell leukemia was diagnosed by peripheral blood, bone marrow aspiration and biopsy, immunophenotyping and cytogenetic analysis in this patient. For its great rarity, we report this case with review of literature.
면역글로불린 M 의 증가가 동반된 면역글로불린 결핍증 1 예
임종섭(Jong Seob Lim),류수현(Su Heon Ryu),유대성(Dae Seong Yu),류인열(In Yeol Ryu),윤성준(Seng Joon Yun),이지현(Ji Hyun Lee),신원혁(Won Hyeog Sin),황순철(Soon Chul Hwang) 대한내과학회 1997 대한내과학회지 Vol.52 No.1
Immunoglobulin deficiency with increased IgM, as defined by World Health Organization classification of primary immunodeficiency, is characterized by normal or increased concentrations of serum IgM and, in some cases, IgD, but decreased or absent IgG, IgA, and IgE. Patients with these disorders have a high incidence of recurrent pyogenic infections, including otitis media, pneumonia, and septisemia. We recently experienced a case of immunoglobulin deficiency with increased IgM in a 25-year old man. He had been suffered from recurrent pyogenic infections-pneumonia, otitis media-since about 6 months of his age. He was admitted due to pneumonia, and Haemophilus influenza was isolated from the sputum culture. Also chest X-ray showed bronchiectasis. His serum immunoglobulin levels revealed increased concentration of IgM and decreased IgG and IgA. He was successfully treated with antibiotics, and now he is being followed-up. So we present this case with the review of literature.
租稅目的上 減價償却方法 變更의 最適時期 決定에 관한 硏究
尹成俊,李潤元 東亞大學校 經營問題硏究所 1989 經營論叢 Vol.10 No.-
Depreciation is the process of allocating the cost of fixed asset over the period related to the use of the asset. Two factors are generally attributable to the firm's selection of depreciation methods:financial reporting and tax consideration. Business enterprises can minimize the present value of income tax by selecting the accelerated depreciation method such as declining-balance methed(DBM) or constant percentage of declining-balance method(CPDBM). These methods recognize a large epreciation expense at the beginning of asset's useful life and can continuously reduce the present value of income tax by switching from DBM to the straight-line mathod(SLM) at the time when the depreciation expense under SLM is large than that under DBM. The purpose of this paper is to suggest an optimal timing of switching depreciation methods in order to minimize the present value of tax payment. If we can, therefore, determine the time minimizing the present value of income tax, it may provide considerable tax effect for business enterprises. Thus, this study, which is based on switching from a accelerated depreciation method such as DBM or CPDDM to SLM, attempts to determine the optimal switch time by means of decision model. The result of this paper shows that the optimal timing of switching depreciation methods depends on the four variables; (1) depreciation rate; (2) useful life of the asset; (3) salvage value as a percentage of book value at the beginning of optimal switching year;and (4) salvage value as a percentage of acquisition cost. Furthermore, the optimal timing of switching from DBM to SLM and from CPDBM to SLM is computed over the various value of the above four variables. However, if the salvage value of an asset is one-tenth of the acquisition cost, as is stipulated in the korean tax law, the optimal timing of switching is always the last year of the useful life.
이정석,이동윤,이준상,김영묵,이지현,홍수희,류인열,윤성준,신원혁,최의혁,유종훈 대한소화기학회 1998 대한소화기학회지 Vol.32 No.1
Background/Aims: The reports on herbal medicine-induced hepatitis are increasing in Korea, China, America, Japan and other countries. To find the differences between other types of hepatitis and herbal medicine-induced hepatitis, we studied patients clinical manifestation, biochemical liver function test and liver biopsy finding. In addition, we tried to find thc definitive causative agents. Methods: We studied 17 patients who had herbal medicine-induced hepatitis, and were admitted to Wallace Memorial Baptist Hospital, Pusan, Korea from January 1995 to January 1997. Their symptoms at admission were jaundice, general weakness and indigestion. The patients who had viral hepatitis, alcoholic hepatitis, liver cirrhosis and other causcs of hepatitis were excluded in this study. We studied the patient's medication history, clinical manifestation, biochemical liver function test and liver biopsy finding. Results: The ratio of male to female was 1:1.8. Age distribution was from 26 to 56 years and mean age was 41 years. Clinical manifestations at admission were jaundice, general weakness, indigestion in order of frequency, On the liver biopsy findings, heavy infiltration of inflammatory eells around the portal tracts, degeneration of hepatocytes and diffuse hepatic necrosis were observed, but there were no significant difference between herbal medicine-induced hepatitis and that of other causes of hepatitis. Conclusions: There was no significant difference in clinical manifestations, biochemical liver function tests and liver biopsy findings between herbal medicineinduced hepatitis and other acute hepatitis. Thus, we conclude that cowork with oriental medicine partner would be needed for evaluating the eauses of herbal medicine-induced hapatitis.
윤혜경,이정석,이동윤,이지현,홍수희,류인열,윤성준,신원혁,최의혁,유종훈,김영묵,이준상 대한소화기학회 1997 대한소화기학회지 Vol.30 No.3
Background/Aims: Melanosis coli is browinsh or black pigmentation of the colonic mucosa associated with long-term ingestion of anthraquinone compounds as laxatives. The discoloration of the colonic mucosa is due to accumulation of macrophages containing brown lipofuscin pigment in the lamina propria. The purpose of this study was to investigate the clinical characteristics of melanosis coli. Methods: We reviewed the clinical records of 50 cases of melanosis coli, which were confirmed by colonoscopy and tissue biopsy in Wallace Memorial Baptist Hospital from December 1992 to Jannuary 1997, with regard to age and sex of patients, sites of involvement, ingredients of laxatives used, clinical symptoms, and concurrent colorectal diseases. Results: The average age of the patients included in this study was 46.0 years, the lowest was 20, and the highest 74. The ratio of male to female was 1:2.6, suggesting that melanosis coli occurs more frequently in the female than in the male. Considering the combination of the involved segments, melanosis coli was most frequently distributed from the cecum to the recturn. The most frequently used agents were antraquinone derivative laxatives including aloe(74.0%) and the duration of ingestion was variable from 2 months to 20 years. Abdominal pain(82.0%) and constipation (64.0%) were the most frequent synptoms at examination. Concurrent colorectal diseases were he- morrhoid, polyps, and cancer in the order. Conclusions: Melanosis coli itself may not have any clinical significance and may not be associated with any colonic functional impairrnent. However, it may provide a clue to laxative abuse, Considering that anthraquinone laxatives such as aloe are widely used in Korea and and the use of laxatives by the elderly is increasing melanosis coli will be detected more frequently.