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이달의 X-선 : 다발 전이성 농양을 일으킨 편평상피세포암성 농양 1예
임주은 ( Ju Eun Lim ),김은영 ( Eun Young Kim ),장지은 ( Ji Eun Jang ),손지영 ( Ji Young Son ),정지예 ( Ji Ye Jung ),박병훈 ( Byung Hoon Park ),이경종 ( Kyung Jong Lee ),윤여운 ( Yoe Wun Yoon ),변민광 ( Min Kwang Byun ),이사라 ( Sa 대한결핵 및 호흡기학회 2009 Tuberculosis and Respiratory Diseases Vol.66 No.5
기관지폐쇄에 의한 폐농양 혹은 공동성 병변에 발생한 암성 농양은 임상 양상 및 방사선학적 소견이 흡인성 폐농양과 흡사하여 감별이 어려워서 폐암을 조기 진단할 수 있는 기회를 놓치기 쉽다. 따라서 항생제에 대한 반응이 뚜렷하지 않거나 선행 요인이 없고 비전형적인 위치에 발생한 폐농양의 경우 악성 병변의 동반 가능성을 염두에 두고 적극적인 검사가 필요하다. 저자들은 발열, 기침, 혈담, 호흡곤란을 주소로 내원하여 폐농양 의심하에 항생제치료에도 불구하고 병변이 악화된 67세 남자 환자에서 간세침흡인생검을 통해 다발 전이성 농양을 일으킨 편평상피세포암성 농양으로 진단된 예가 있어 문헌 고찰과 함께 보고하는 바이다. Among the bronchogenic carcinomas, especially squamous cell carcinoma and large cell carcinoma frequently present with cavitation, which may result from tumor necrosis. Cavitary lesions of the tumor are occasionally associated with infection and misdiagnosed as benign lung abscess owing to the partial responsiveness to antibiotics. It is very difficult to distinguish the carcinomatous abscess from the benign lung abscess, because of their similar clinical and radiologic features. Delay in diagnosis of underlying lung cancer may result in poor outcome. Therefore, clinicians should remember that the patients with highly suspicious carcinoma of the lung should undergo further precise examinations to find out malignant cells.
앵커 부착-미끄러짐 모형을 이용한 콘크리트-강재 구조물의 비선형 반복하중 해석
임주은(Lim Ju Eun),이지호(Lee Jee Ho) 대한토목학회 2009 대한토목학회논문집 A Vol.29 No.5A
본 논문에서는 앵커로 연결된 콘크리트-강재 구조물이 극한 반복주기하중을 받는 경우를 수치 시뮬레이션하기 위하여 필요한 콘크리트-앵커 부착모형에 대하여 논하였다. 제안되는 앵커의 부착-미끄러짐 수치모형은 비선형 일축 연결요소의 조합으로 이루어지며 인발실험 결과를 이용하여 부착-미끄러짐 모형의 인자를 결정할 수 있다. 제안된 앵커 부착-미끄러짐 모형을 Abaqus 요소의 조합으로 구성하고, 이를 사용한 해석 결과와 앵커의 완전부착모형을 사용한 해석 결과를 실험 결과와 비교하였다. 이로부터 극한 반복하중을 받는 콘크리트-강재 구조물 수치해석에는 합리적인 앵커 부착-미끄러짐 모형이 반드시 사용되어야 한다는 것을 알 수 있었으며 본 연구에서 제안한 합성 연결모형을 이용하면 사실적으로 앵커의 부착-미끄러짐 현상을 모사할 수 있다는 것을 확인하였다. In this paper, a numerical anchor bond-slip model is proposed to improve the numerical simulation of concrete-steel structures connected with steel anchor bolts and subjected to extreme cyclic loading. The suggested bond-slip model is composed of a group of nonlinear uniaxial connector elements and its parameters can be determined by calibrating the model with pull-out test data. Numerical analysis results from simulating a concrete foundation-steel column structure using the proposed bond-slip anchor model, which is implemented based on Abaqus elements, and the perfect-bond anchor model are compared with the experimental results. It is concluded that a reasonable anchor bond-slip model is required to realistically simulate concrete-steel structures subjected to extreme cyclic loading, and the proposed anchor bond-slip model shows acceptable performance in the present numerical analysis.
이달의 X-선 : 흉부 질환 진단에서 소홀하기 쉬운 단순 흉부 X-선 사진의 중요성: 종격동 종양을 중심으로
김은영 ( Eun Young Kim ),임주은 ( Ju Eun Lim ),박병훈 ( Byung Hoon Park ),윤진영 ( Jin Young Yoon ),정지예 ( Ji Ye Jung ),손지영 ( Ji Young Son ),이경종 ( Kyung Jong Lee ),윤여운 ( Yoe Wun Yoon ),강영애 ( Young Ae Kang ),문진욱 ( 대한결핵 및 호흡기학회 2009 Tuberculosis and Respiratory Diseases Vol.66 No.6
종격동은 다양한 기관들이 밀집되어 있는 구조라서 종양 등 질병이 발생하더라도 위치상 심장이나 대혈관의 음영과 중첩되어 보이기 때문에 단순 흉부 X-선 촬영상 정상소견으로 오인할 수 있다. 종격동 종양의 경우 주위조직의 침범 여부나 주위 림프절 크기 이외에도 환자의 연령, 종양의 크기 및 위치, 환자의 증세 유무가 중요한 고려사항이다. 저자들은 흉부 불쾌감이 지속되어 내원한 56세 여자 환자에게서 단순 흉부 X-선 사진의 면밀한 관찰을 통해 기관분지부의 종격동 종양을 발견한 증례를 통해, 다시 한번 단순 흉부 X-선 촬영의 진단적인 중요성을 임상의들에게 환기시키고자 한다. The middle mediastinum contains several important organs and pluripotent cells. It is difficult to make a definitive diagnosis in patients with middle mediastinal tumors due to a wide range of diseases. The likelihood of malignancy is influenced primarily by the following factors: patient age, size, tumor location, and the presence or absence of symptoms. We describe a case of a middle mediastinal tumor, which was suspected on chest x-ray; chest computed tomography revealed the eccentric mass of distal esophagus. This case emphasizes the diagnostic importance of the chest x-ray to the physicians. The possible differential diagnoses are reviewed.
서주희 ( Ju Hee Seo ),이혜원 ( Hye Won Lee ),임주은 ( Ju Eun Lim ),정주원 ( Joo Won Chung ),최종락 ( Jong Rak Choi ),양우익 ( Woo Ick Yang ),민유홍 ( Yoo Hong Min ) 대한내과학회 2009 대한내과학회지 Vol.76 No.5
Biphenotypic acute leukemia (BAL) is a subtype of acute leukemia that expresses two different immunophenotypic lineages, most commonly myeloid and either B- or T-lymphoid lineages. This entity has been defined by a scoring system proposed by the European Group for the Immunological Characterization of Leukemias (EGIL). The prognosis of BAL is regarded as being worse than either acute lymphoid or myeloid leukemia that does not show lineage ambiguity. However, a treatment strategy for BAL has not yet been established. We experienced a case of BAL with the t(8;21) translocation, a favorable cytogenetic rearrangement in acute myeloid leukemia (AML). The patient was successfully treated with cytarabine and anthracycline for induction and consolidation. The quantitative value of the AML1-ETO gene decreased after achieving complete hematologic remission. Thus, the AML1-ETO gene rearrangement in BAL may be associated with an acceptable response to the treatment strategy for AML. (Korean J Med 76:617-621, 2009)
콘크리트 손상모형을 이용한 FRP 보강 철근콘크리트 보의 해석
이지호 ( Lee¸ Jee-ho ),박영환 ( Park¸ Young-hwan ),조정래 ( Cho¸ Jung-rae ),임주은 ( Lim¸ Ju-eun ) 한국구조물진단유지관리공학회 2002 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.6 No.2
In this paper, a model for reinforced concrete beams strengthened with FRP is presented. The model consists of separate models representing concrete, reinforcing steel bars, FRP, and connection between concrete and FRP. Cracked concrete is represented by the plastic-damage model. Connection between concrete and FRP is represented by a bond-slip link model. From numerical simulation, it is shown that the proposed model effectively and realistically represents the failure behavior of reinforced concrete beams strengthened with FRP sheets. The present plastic-damage concrete model is observed to work appropriately with the reinforcing bar and FRP-concrete bond-slip link model in representing the strain localization behavior.
다제내성 결핵환자에서 Prothionamide에 의한 급성 간염
박준범 ( Jun Beom Park ),박병훈 ( Byung Hoon Park ),손지영 ( Ji Young Son ),정지예 ( Ji Ye Jung ),김은영 ( Eun Young Kim ),임주은 ( Ju Eun Lim ),이상훈 ( Sang Hoon Lee ),이상국 ( Sang Kook Lee ),김송이 ( Song Yee Kim ),정원재 ( Wo 대한결핵 및 호흡기학회 2011 Tuberculosis and Respiratory Diseases Vol.70 No.3
The prevalence of multi-drug resistant tuberculosis (MDR-TB), which is resistant to isoniazid and rifampin, has been increasing in Korea. And the side effects of 2nd line anti-tuberculosis medications, including drug-induced hepatitis, are well known. Although prothionamide (PTH) is one of the most useful anti-TB medications and although TB medication-induced acute hepatitis is a severe complication, there are only a few published case reports about prothionamide induced hepatitis. In this case report, a 22 year old male was diagnosed with pulmonary MDR-TB and was administered 2nd line anti-TB mediations, including PTH. Afterwards, he had a spiking fever and his liver enzymes were more than 5 times greater than the upper limit of the normal range. He was then diagnosed with drug-induced hepatitis by liver biopsy. His symptoms and liver enzyme elevation were improved after stopping PTH. Accordingly, we report this case of an association between PTH and acute hepatitis.
간이식 환자에서 발생한 Nocardia farcinia 폐렴 및 패혈성 쇼크
이수환 ( Su Hwan Lee ),박병훈 ( Byung Hoon Park ),손지영 ( Ji Young Son ),정지예 ( Ji Ye Jung ),김은영 ( Eun Young Kim ),임주은 ( Ju Eun Lim ),이지훈 ( Ji Hoon Lee ),현신영 ( Shin Young Hyun ),이상훈 ( Sang Hoon Lee ),이상국 ( San 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.69 No.6
Nocardia farcinia, an aerobic, gram-positive bacilli actinomycetes of the genus Nocardia, is an uncommon pathogen found in humans. The most common Nocardia infection sites are the lung, central nervous system, and skin. Even though hematogenous dissemination can occur, isolation of the organism from blood cultures is very rare. We report a case of Nocardia infection that was isolated on blood cultures. A 59-year-old male with a medical history that includes a liver transplantation 6-years prior due to hepatocellular carcinoma secondary to chronic hepatitis B, developed pneumonia and was transferred to Severance Hospital. At the time of admission, the patient`s initial exam showed hypothermia, tachypnea, and hypotension. His chest radiograph showed severe pneumonia and a large abscess on left upper lobe. Under the presumptive diagnosis of bacterial pneumonia or other opportunistic infection, we started broad spectrum antibiotics. However, he developed Nocardia sepsis, rapidly deteriorated, and subsequently died.
궤양성 대장염에서 나타난 폐쇄성 세기관지염 기질화 폐렴
이현정 ( Hyun Jung Lee ),박병훈 ( Byung Hoon Park ),손지영 ( Ji Young Son ),정지예 ( Ji Ye Jung ),황세나 ( Se Na Hwang ),전영은 ( Young Eun Chon ),김은영 ( Eun Young Kim ),임주은 ( Ju Eun Lim ),이경종 ( Kyung Jong Lee ),윤여운 ( Y 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.68 No.3
The ulcerative colitis is a chronic inflammatory bowel disease with an unknown etiology. The major symptoms of ulcerative colitis are diarrhea, abdominal pain and hematochezia. However, arthritis, skin disorders, hepatobiliary inflammation and uveitis are occasionally recognized as systemic complications. Although there are few reports of coexistent pulmonary and inflammatory bowel disease, the lung is not generally considered to be a target organ in ulcerative colitis. We report a patient with ulcerative colitis-related bronchilolitis obliterans organizing pneumonia confirmed by video-assisted thoracoscopic surgery, who responded to corticosteroid therapy.