• The Journal of the Korean bone and joint tumor society
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• v.7 no.1
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• pp.20-27
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• 2001

Purpose : The giant cell tumor of tendon sheath is the second most common tumor of the hand, but recurred frequently although excision was performed. Authors analyzed and would report clinical findings and postoperative results of it. Materials and Methods : Between January 1991 and December 1998, 38 patients, 41 cases which the authors had performed excisional biopsy to the mass in the hand and diagnosed with the giant cell tumor of tendon sheath, was analyzed with age, sex, chief complaint, symptom duration, involved finger, involved tendon, frequently developed site in fingers, size, multiplicity, radiologic findings and recurrence. The mean duration of follow-up was 13.1 months (5~40 months). Results : Of 38 patients, twenty-nine were female. It is frequent in the fourth decade and mean age was 40.1 years old. The neurological compression symptom was found in 5 cases. The mean duration of symptom was 23.4 months. Flexor tendon was involved in 24 cases. The distal interphalangeal joint area in digit was involved most frequently in 20 cases. Index finger was the most common involved finger (14 cases), and long finger was the second most common (9 cases). All tumors were unilateral. The majority of patients had solitary lesion but one case had multiple lesion. In the radiologic findings, erosion or pressure indentation of bone was seen in 3 cases. All patients were operated by marginal excision. Recurrence rate was 5.1%. Conclusion : The risk factors in giant cell tumor of tendon sheath were female, forth decade, index finger, flexor tendon, and distal interphalangeal joint area. The recurrence was increased in marginal excision of recurred cases, in cases with multiple developed lesions or in multilobular lesion, so wide surgical excision is necessary to prevent recurrence.

• Journal of Dental Rehabilitation and Applied Science
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• v.25 no.3
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• pp.211-224
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• 2009

The objective of this study is to examine the condylar surfaces in order to find out the types, the incidence and common occurrence area of the osseous abnormalities of the condyles according to the age, genders and the purpose of CT taking, and to compare those between the groups for TMD diagnosis and the other groups. 3D CT images of 199 patients which were scanned with the $i-CAT^{TM}$ Cone Beam Computed Tomography were collected from Sanbon Dental Hospital of Wonkwang university and the MPR images were transfered to the TMJ mode to be showed serial sagittal images and coronal images. The images were macroscopically examined by three independent observers for the types and incidences of the osseous abnormalities, their common occurrence area and general shapes of the condyles. As a result, type F is most common ever than type N. The common occurrence area in sagittal images is antero-superior and superior area except for type D-C which were showed on postero-superior area commonly. In coronal images, latero-superior and superior area is most common except for type E which were present on mesio-superior and superior area most frequently. The osseous abnormalities of the condyles are more common in TMD diagnosis group except for type D-C, that is type N and type D-C are more common in the other groups. In this study, abnormalities of the condyles are classified into 6 types and it has a common occurrence area each. And TMD diagnosis group shows a tendency to have higher rate for osseous abnormalities except for type D-C.

• Pediatric Infection and Vaccine
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• v.5 no.1
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• pp.79-87
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• 1998

Purpose : The P1 protein of Mycoplasma pneumoniae mediates the attachment of the pathogen to its host cell and elicits a strong humoral immune response during infection with this organism. Mycoplasma pneumoniae strains can be classified into two groups(I and II) by PCR method of P1 cytadhesin gene. In this study, we evaluated the prevalence, epidemiological and clinical characteristics of each group. Methods : From 155 patients with Mycoplasma pneumoniae, who admitted to the Department of Pediatrics, Sung-Ae and Kwangmyung Sung-Ae Hospital between November 1996 and October 1997, we collected their throat swabs or nasopharyngeal aspirates for DNA extraction and serum for indirect hemagglutination test of Mycoplasma pneumoniae. The group specific PCR amplification were performed using specific oligonucleotide primers designed for P1 gene genotyping. Results : Group I(137 patients, 88.4%) occurred frequently than group II(18 patients, 11.6%). In both group, the most prevalent season was winter in 1996(Nov. to Dec.) and fall in 1997(Aug. to Oct.) The prevalent age was four to six years old. The number of male was more than female in both group; Group 1(1.2:1), Goup 2(1.6:1). No significant relationship were found between two groups in duration of fever and hospital days(P>0.05). The rate of high antibody titers(>1:5120) was lower in group I(6/137, 4.4%) than group II(2/18, 11.1%). Conclusion : Group I was much more prevalent than group II during 1996~1997 in Korea. There was no difference between two groups in epidemiological and clinical parameters except the rate of high antibody titers. Further follow-up survey will be needed for the epidemiologic and clinical studies of Mycoplasma pneumoniae in Korea.

• Tuberculosis and Respiratory Diseases
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• v.57 no.1
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• pp.19-24
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• 2004

Background : It is difficult to differentiate between tuberculous pneumonia and Community Acquired Pneumonia, so the diagnosis and treatment of tuberculous pneumonia can be delayed frequently. In this study, we attempted to retrospectively evaluate the clinical and radiologic characteristics of tuberculous pneumonia. Methods : We conducted a retrospective analysis of clinical characteristics of 58 patients diagnosed with tuberculous pneumonia from Nov. 1997 to May 2001 at Korea university kuro hospital. Result : The male to female ratio was 1:1 and the mean age at diagnosis was $54.5{\pm}18.6$ years. Fifty five patients were confirmed microbiologically and three patients pathologically. There were 20 patients(34.5%) who had diabetes mellitus(8cases), chronic obstructive pulmonary disease(3cases), malignancy(3cases), bronchiectasis(2cases), chronic renal failure(1cases) or long term history of corticosteroid treatment(3cases). Many patients had multilobar infiltration in chest X-ray, dominantly in the lower lobe. thirty two patients(55.2%) had infiltration in more than 2 lobes and 5 patients in more than 4 lobes. The significant correlation between the diabetes mellitus and the infiltrated Rt lower lobe(RLL) was found on the borders of confidence limit.(P=0.07<0.1). There was significant correlation between woman and infiltrated lobe(RML, RLL, LLL) excluding the both upper lobe(P=0.029). Conclusion : We must consider tuberculous pneumonia when lobar pneumonia with consolidation resistant to antibiotics, especially in the patients who have diabetes mellitus, chronic obstructive pulmonary disease, malignancy, bronchiectsis, chronic renal failure or long term history of corticosteroid treatment.

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.392-395
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• 2002

효소는 주로 면직물의 전처리 및 염색가공에 사용되고 있는데, 공업적으로 적용되고 있는 예로는 아밀라제에 의한 호발, 셀룰라제에 의한 감량 및 유연가공을 들 수 있고, 최근 미국과 일본을 중심으로 연구되고 있는 펙티나제에 의한 정련은 공업화 가능성이 매우 높은 것으로 보고되고 있으며, 글루코스 옥시다제에 의한 표백은 아직연구 초기 단계에 있다. 효소정련이란 기존의 수산화나트륨 대신에 효소를 사용하여 행하는 정련을 말하며, 장점으로는 50-6$0^{\circ}C$ 정도의 온도에서 행하기 때문에 기존 정련법과 비교시 에너지와 용수를 절약할 수 있는 것, 폐수 중에 방출되는 오염물질의 양을 현격하게 줄일수 있을 것, 우수한 생분해성으로 인한 수질오염을 감소시킬 수 있을 것, 부드럽고 스무스하여 자연스런 태를 부여하는 것 및 재현성이 높은 것 등이다. (중략)

• The Journal of the Korean bone and joint tumor society
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• v.11 no.2
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• pp.204-207
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• 2005

Osteosarcoma is mainly developing around the knee joint. But osteosarcoma of the calcaneus is rare. A 20 year old male patient visited our clinic due to persistent pain around the calcaneus. We diagnosed it to osteosarcoma of the calcaneus and treated with below knee amputation and adjuvant chemotherapy. We experienced a case of osteosarcoma of the calcaneus and would like to report it with review of literatures.

• Journal of Chest Surgery
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• v.36 no.10
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• pp.789-793
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• 2003

Primary pulmonary angiosarcomas are extremely rare tumors. The diagnosis is often delayed due to nonspecific symptoms, mimicking pulmonary embolism and require careful clinical evaluation to exclude metastasis from the heart, pericardium, and distant extrathoracic sites. Most diagnosis are made postmortem. We report a case of primary pulmonary angiosarcoma histopathologically confirmed postoperatively, which was clinically suspected endobronchial carcinoma with endobronchial obstruction with relavant literature review.

• Textile Coloration and Finishing
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• v.11 no.5
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• pp.1-6
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• 1999

This study was carried out to investigate the effect of a scouring machine including an ultrasonic system on desizing and scouring polyester fabrics. The ultrasonic frequency of the improved machine showed up at 28.882 kHz. Frequency amplitude increased with the current and the bath temperature, and then showed a constant level. Scouring effect of the ultrasonic machine was better than that of the conventional scouring machine using the mechanical stirring. The ultrasonic machine showed the optimum scouring effect at $50^\circ{C}$ of bath temperature and 10 min. of operation time, as compared to the conventional machine that required operating conditions of high temperature at $90^\circ{C}$, stirring speed at 40 rpm, and stirring time for 15 min..

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.257-258
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• 2011

한국과학기술정보연구원과 가톨릭대학교 의과대학 가톨릭응용해부연구소에서는 기초기술연구회 National agenda project 일환으로 척추 연구자들이 쉽게 사용할 수 있는 기초 자료를 구축하고 있다. 컴퓨터 시뮬레이션 연구에 활용할 수 있는 모델 제작을 위한 형상 정보를 제공하기 위해 60대, 70대 기증시신 20여 표본을 활용하여 고해상도 척추 (whole spine) CT (pixel dimension : 0.4xmm, thickness: 0.6mm)를 촬영하고 이를 3차원 모델링 소프트웨어(Mimics, Ver.14, Materialise, Belgium)를 사용하여 3차원 형상 모델(shell model, STL format)로 구축하고 있다. 또한 3차원 형상 모델을 활용하여 목, 등, 허리 척추의 주요 부위를 계측하여 수치화 하였다. 시신 기반 자료의 한계를 극복하기 위해 척추센터를 내원한 환자 중 고령자 호발 질환을 중심으로 선정하여 X-Ray, 3D CT, MRI, BMD 자료를 구축하여 보강하고 있다.

• Journal of Chest Surgery
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• v.29 no.10
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• pp.1166-1169
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• 1996

Neurllemomas of the tracheobroncheal tree are extremely rare. Most are located in the lower trachea, and cause chronic cough and wheezing. They usually have a very long natural history, causing symptoms only after they have attained a considerable size. Current treatment of primary intratracheal tumor is sugical removal. Recently, we experienced a case of primary intratracheal neurilemoma which was successfully treated by tracheal resection and anastomosis. We report this case with a brief review of literature.