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전신적인 피부병변으로 발현한 모세포성 NK세포 림프종 1예
이근욱,윤탁,김동완,김태유,허대석,박영주,김노경 대한내과학회 2004 대한내과학회지 Vol.66 No.4
저자들은 다른 장기의 침범 없이 전신적인 피부 병변만으로 발현한 모세포성 NK세포 림프종 1예를 국내에서 처음으로 경험하였기에 이를 문헌고찰과 함께 보고하는 바이다. Reports of blastic natural killer (NK)-cell lymphoma are rare. In previous reports, primary cutaneous blastic NK-cell lymphomas were even rarer. In asian patients, most CD56+ lymphomas are classified as nasal type extranodal NK/T-cell lymphoma and mostly associated with the presence of Epstein-Barr virus (EBV) and have an aggressive clinical course. Few cases of blastic NK-cell lymphoma were reported previously in Korea but there was report about blastic NK-cell lymphoma initially presented as disseminated skin lesions without any other organ involvement. We report such a young patient who was treated by systemic chemotherapy.
Bang, Wan-Keun,Lee, Seung-Kyou,Lee, Seung-Heun,Kim, Chang-Eun The Korean Ceramic Society 2000 The Korean journal of ceramics Vol.6 No.3
The hydration behavior of fly ash and slag on cement paste were investigated. Early stage of hydration reaction was delayed by mixing fly ash and/or slag with cement, but production of C-S-H hydrates by pozzolanic reaction densified the microstructure. The Ca/Si ratio of C-S-H hydrates in OPC and blended cement of fly ash 50%, slag 50%, fly ash+slag 50% were 2.24, 1.80, 1.82 and 1.97, respectively. The C-S-H gel with low Ca/Si ratio showed rather reticulate than needle-like structure.
방완근,김창은,강성근 연세대학교 산업기술연구소 1997 논문집 Vol.29 No.1
Iron-bearing cold bonded pellets using blast fumace slag with various activators were prepared and cured at different conditions. The specimens were evaluated by UTM analysis and compared with pellets using ordinary Portland cement. To clarify the hardening mechanism of slag binder, XRD, DTA, Calorimeter, SEM and other analyses were performed. Hydration product identifications and compressive strength measurement revealed that if activators and curing conditions were properly chosen, Cement can be replaced with slag binder in cold bonded pellet preparation.
Keun-Sik Hong,Oh Young Bang,Dong-Wha Kang,유경호,배희준,Jin Soo Lee,허지회,Sun U. Kwon,Chang Wan Oh,이병철,Jong S. Kim,Byung-Woo Yoon 대한뇌졸중학회 2013 Journal of stroke Vol.15 No.1
The aim of the Part I of Stroke Statistics in Korea is to summarize nationally representative data of the epidemiology and risk factors of stroke in a single document. Every year, approximately 105,000 people experience a new or recurrent stroke and more than 26,000 die of stroke, which indicates that every 5 minutes stroke attacks someone and every 20 minutes stroke kills someone in Korea. Stroke accounts for roughly 1 of every 10 deaths. The estimated stroke prevalence is about 795,000 in people aged ≥30 years. The nationwide total cost for stroke care was 3,737 billion Korean won (US$3.3 billion) in 2005. Fortunately, the annual stroke mortality rate decreased substantially by 28.3% during the first decade of the 21th century (53.2/100,000 in 2010). Among OECD countries, Korea had the lowest in-hospital 30-day case-fatality rate for ischemic stroke and ranked third lowest for hemorrhagic stroke in 2009. The proportion of ischemic stroke has steadily increased and accounted for 76% of all strokes in 2009. According to hospital registry studies, the 90-day mortality rate was 3-7% for ischemic stroke and 17% for intracerebral hemorrhage. For risk factors, among Korean adults ≥30 years of age, one in 3-4 has hypertension, one in 10 diabetes, and one in 7 hypercholesterolemia. One in 3 Korean adults ≥19 years of age is obese. Over the last 10years, the prevalence of hypertension slightly decreased, but the prevalence of diabetes, hypercholesterolemia, and obesity increased. Smoking prevalence in men has decreased, but is still as high as 48%. This report could be a valuable resource for establishing health care policy and guiding future research directions.
Lee, Keun-wook,Yun, Tak,Kim, Dong-wan,Im, Seock-ah,Kim, Tae-you,Yoon, Sung-soo,Heo, Dae Seog,Bang, Yung-jue,Park, Seonyang,Kim, Byoung Kook,Kim, Noe Kyeong Taylor Francis 2006 Leukemia & lymphoma Vol.47 No.7
<P>Although most patients diagnosed with extranodal NK/T-cell lymphoma (NTCL) have localized disease, radiotherapy alone is unsatisfactory because of frequent systemic failure and conventional doxorubicin-based chemotherapy has low efficacy. Twenty-six patients with NTCL received ifosfamide, methotrexate, etoposide and prednisolone (IMEP) chemotherapy as first-line treatment [ifosfamide 1.5 g/m<SUP>2</SUP> (days 1 – 3), methotrexate 30 mg/m<SUP>2</SUP> (days 3 and 10), etoposide 100 mg/m<SUP>2</SUP> (days 1 – 3) and prednisolone 120 mg (days 1 – 5)]. Radiotherapy was administered only to patients with Ann Arbor stage I/II that had not achieved complete remission (CR) or to those that developed local failure after completing chemotherapy. Sixteen patients (group A) had nasal or upper aerodigestive tract localization (stage I/II) and 10 (group B) had extranasal or disseminated disease. Of the 14 evaluable patients in group A, 11 (79%) achieved CR after IMEP alone and 13 (93%) after chemotherapy ± additional radiotherapy. Although, out of the 11 patients who achieved CR with chemotherapy alone, seven developed recurrence, all recurrences were local failure and successfully treated by additional curative radiotherapy. However, patients in group B responded poorly (CR 13%). IMEP regimen was active in NTCL patients with nasal or upper aerodigestive tract localization. Considering local failure rate after IMEP alone, initial IMEP chemotherapy followed by radiotherapy may be a promising treatment strategy in this subset of NTCL.</P>