• 제목/요약/키워드: Fibrous

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악골내 섬유조직성-골성병소에 관한 임상연구 (A CLINICAL STUDY ON FIBRO-OSSEOUS LESIONS OF THE JAWS)

  • 김욱규;차승만;황대석;김용덕;신상훈;김종렬;정인교
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제27권3호
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    • pp.248-258
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    • 2005
  • The challenging task of classifying the fibro-osseous(FO) lesions has been previously attempted but only in the past 15 years has the entire spectrum of diversity been appreciated. For the clinicians, it is hard to clearly diagnose the lesions before operations. The purpose of this study was to review the literature about fibro-osseous lesions of the jaws and to analyse our clinical cases. As the results of the review of clinical features, radiography and histopathologic findings of sixteen cases of fibro-osseous lesions, we could elucidate diagnostic aids for treatment of benign FO lesion in jaws. Six patients involving fibrous dysplasia complained the facial swelling and facial asymmetry. The radiographic features of the lesions showed ground-glass radiopacity mostly and the histologic findings showed typically Chinese character-shaped trabeculae without osteoblastic rimming in the fibrous stroma. Six patients with ossifying fibroma were notified as swollen buccal cheek state. Their radiographic findings showed cortical expanded radiolucent lesion with sclerotic defined border, which was contrast to the normal adjacent bone. The lesions showed variant radiolucent lesions. Histological findings were revealed as cellular fibrous stroma with woven bones, variable patterns of calcifications. Three patients with cemental dysplasia didn't have specific complaints. Well circumscribed radiopaque lesions on mandibular molar area were observed. Cementum-like ossicles with fibrous stroma were found on microscopic findings. A osteoblastoma case with jaw pain was found. The radiographic feature was a mottled, dense radiopacity with osteolytic border on mandibular molar area. Under microscopy trabecule of osteoid with vascular network were predominantly found. Numerous osteoblast cells with woven bone were found. These clinical, radiographic and microscopic findings of benign fibrous-osseous lesions would suggest diagnostic criteria for each entity of FO lesions.

악성 섬유조직구종 형태를 가진 원발성 폐육종 1예 (A Case of Primary Pulmonary Sarcoma with Morphologic Features of Malignant Fibrous Histiocytoma)

  • 이연정;허원행;노대근;김승준;이숙영;김영균;문화식;송정섭;박성학;박경신;이교영
    • Tuberculosis and Respiratory Diseases
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    • 제52권2호
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    • pp.186-191
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    • 2002
  • 저자들은 53세 남자환자에서 조직학적, 면역학적으로 악성 섬유조직구종의 형태를 가진 원발성 폐육종 1예를 경험하였기에 이를 문헌고찰과 함께 보고하는 바이다.

광범위하게 진행된 다발성 섬유성이형성증 (A Case of Extensive Polyostotic Fibrous Dysplasia)

  • 이병도;황의환;이상래
    • Imaging Science in Dentistry
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    • 제30권2호
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    • pp.117-122
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    • 2000
  • Fibrous dysplasia is a benign disorder of bone consisting of intramedullary proliferation of fibrous tissue and irregularly distributed, poorly developed bone. The disease manifests itself in the monostotic form in which only one bone is involved and the polyostotic form in which multiple bones at different sites are affected. We reported a extensive case of polyostotic fibrous dysplasia with involvement of craniofacial bones, mandible, ribs and extremities. A 18-year-old man showed remarkable right facial swelling who had been treated on right femur 3 years ago with a bone graft for pathologic fracture and he recognized facial swelling 5 years ago. Extraoral radiograms and computed tomogram showed diffuse sclerosis with a ground glass appearance of the most cranial bones, facial bones. The right mandibular lesion showed very expansile lesion with mottled appearance. Bone scans showed mutifocal increased uptakes in craniofacial bones, right mandible, bilaterally in ribs, humerus, femur, tibia and characteristic varus deformity of right femur (shepherd's crook defomity). This case showed exceptionally bilateral, extensive nature of bone lesion and didn't show any features of skin pigmentation and endocrine disturbances.

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제지공정 scum에서의 섬유상 원료 재이용성 평가 (Evaluation of Recyclability of Fibrous Raw Materials from Scums in Papermaking Process)

  • 강광호;김형진
    • 펄프종이기술
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    • 제44권6호
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    • pp.58-69
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    • 2012
  • As the meaning of dictionary terminology, scum refers to a layer of impurities that accumulates at the surface of a liquid. In papermaking process, scum indicates the floated solid waste generated by a flotation process during the primary wastewater treatment. In this study, different kinds of stocks and scums collected from newspaper, liner, tissue and fine paper were analysed in details. The purpose of this study was firstly to demonstrate the composition characteristics of different sources of scum, secondly the analysis of environmental hazardous materials, and thirdly the evaluation of reutilization ability of fibrous materials from collected scum. As mentioned the meaning of solid waste, scum was actually differ from the waste sludge in sources, compositions and recycling abilities. In the same manner of waste paper, the sludge which is generated within onsite of papermaking processes would be reused as a raw material. The general compositions of scum from waste water were mainly inorganic ash materials, fine fibre fractions, recycled fibre debries, and ink particles. If the scum is able to reuse as fibrous additives in papermaking process, it could contribute to the savings of running costs in both the subsidiaries of fibrous material and the solid waste treatment with even small quantity.

참싸리 부위별(部位別) 과산화(過酸化) 동위효소형(同位酵素型)의 변이(變異) (Variation in the Pattern of Isoperoxidase Bands in the Four Parts of Lespedeza cyrtobotrya Miq.)

  • 한영창
    • 한국산림과학회지
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    • 제30권1호
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    • pp.42-49
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    • 1976
  • 참싸리 부위별 과산화동위효소형의 변이를 알고저 전기영동법에 의하여 효소형을 조사한 바, 동일 개체에서 동시에 채취한 동일부위의 과산화동위효소형의 변이는 없었으며 공동출현 "밴드"는 부위별로 차이가 있어 잎, 인피, 세근에서는 7번"밴드"자방에서는 35번"밴드"가 나타났으며 부위별 개체별 과산화동위효소형의 변이가 있었고 성숙된 잎을 제외하고는 개체간 과산화동위효소형의 색정농도에 차이가 있었다.

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폐로의 전이성 악성 섬유성 조직구종 -1예 보고- (Metastatic Malignant Fibrous Histiocytoma in Lung -One Case Report-)

  • 이석열;이만복;이길노;고은석
    • Journal of Chest Surgery
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    • 제32권7호
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    • pp.671-674
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    • 1999
  • 42세 여자환자가 외래 추적검사에서 1998년 12월에 흉부 방사선 사진상 우측폐 하엽에 고립성 폐결절이 관찰되었다. 경피적 경흉부 세침흡인 세포검사 실패후 진단과 치료를 위해 우측폐 하엽 상기저폐구역의 쐐 기절제를 하였다. 환자는 3년전에 좌측 둔부에 종괴가 있어서 제거후 병리조직검사에서 악성 섬유성 조직구 종으로 진단받고 35일간 4500 rad의 방사선치료를 받았었다. 병리조직 講瀯\ulcorner폐로 전이된 악성 섬유성 조직 구종으로 진단되었다.

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Undetermined Fibrous Tumor with Calcification in the Cerebellopontine Angle

  • Cheon, Se-Hun;Kang, Shin-Hyuk;Park, Kyung-Jae;Chung, Yong-Gu
    • Journal of Korean Neurosurgical Society
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    • 제48권2호
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    • pp.173-176
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    • 2010
  • In this report, we introduce an undetermined fibrous tumor with calcification occurring in the cerebellopontine angle (CPA). A 51-year-old woman was admitted with a short history of dizziness. Computed tomography and magnetic resonance images revealed a $2{\times}2{\times}2\;cm$ sized mass at the left CPA which was round and calcified. There was no dura or internal auditory canal involvement. At surgery, the tumor was located at the exit of 7th and 8th cranial nerve complex. It was very firm, bright yellow and well encapsulated. Histologic findings revealed that the tumor was predominantly composed of fibrous component, scant spindle cells and dystrophic calcification. Immunohistochemical staining demonstrated positive for vimentin and negative for epithelial membrane antigen (EMA), S-100 protein, CD34, factor XIIIa and smooth muscle actin. The diagnosis was not compatible with meningioma, schwannoma, metastatic brain tumors, and other fibrous tumors. Although the tumor was resected in total, long term follow-up monitoring is necessary due to the possibility of recurrence.

강섬유를 혼입한 고강도 콘크리트 보의 탄소섬유쉬트 보강에 관한 연구 (A Study on Carbon Fiber Sheet Rehabilitation of High Strength Reinforced Concrete Beams Mixed Steel Fibrous)

  • 곽계환;곽경헌;정태영;고성재
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2001년도 가을 학술발표회 논문집
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    • pp.491-496
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    • 2001
  • In recent years, the research and development about the new material proceed rapidly and actively in the building industry. As building structures become bigger, higher and more specialized, so does the demand for material with higher strength. In the future, we will need to research repair and rehabilitation to make high strength concrete mixed steel fibrous building safe. The carbon fiber reinforced plastic bonding method is widely used in reinforcing the existing concrete structure among the various methods. The repair of initiate loaded reinforced high-strength concrete beams mixed steel fibrous with epoxy bonded Carbon Fiber Sheets(CFS) was investigated experimentally. The CFS thickness and length were varied to assess the peel failure at the curtailment of CFS, The behaviour of the repaired beams was represented by load-longitudinal steel strain relation and failure modes were discussed. The test results indicate that CFS is very effective for strengthening the demand beams and controlling deflections of reinforced high strength concrete beams mixed steel fibrous happen diagonal crack, the increase in the number of CFS layers over two layers didn't effect the increase in the strength of beams.

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흉막에 발생한 고립성 섬유종의 외과적 치험 (Surgical Resection of Solitary Fibrous Tumor in the Parietal Pleura -Report of One Case-)

  • 이종호;심성보
    • Journal of Chest Surgery
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    • 제29권7호
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    • pp.798-801
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    • 1996
  • 흉막에 발생한 고릴성 섬유종은 비교적 회귀한 질환으로 알려져 있으며, 대부분 장측 흉막에서 발생하고 벽측 홍막에서 발생되는 경우는 매우 드물다. 저자들은 48세 여자환자에서 우흉곽내 벽측 흉막에서 발생한 거대 고립성 섬유종 1례를 수술 치험하였다. 환자는 10개월전 부터 발생한 호흡곤란이 주증상이었고, 술전 흉부전산화 단층될영상 우측 폐실질을 주변으로 밀어내는 이종의 종괴형태를 보였다. 수술 소견상 종괴는 피낭에 싸여 있었고, 벽측 흉막에서 기 시하였다. 절제된 종괴의 크기는 20cmX15cmX11cm였고, 무게는 2200gm에 이르렀다. 환자는 합병증없이 퇴원하였으며 술후 6개월 간 추적 관찰하였으나 재발의 소견없이 양호한 상태를 보이고 있다.

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