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비강내 발생한 신경섬유종의 내시경적 비내 수술 치험 1예
정진혁,금효섭,김경래,박용욱 대한이비인후과학회 2005 대한이비인후과학회지 두경부외과학 Vol.48 No.9
Neurofibroma is a neurogenic tumor arising from schwann cells or peripheral tissues of nerve sheaths. It is extremely rare in the sinonasal tract. We report on a case of neurofibroma of the nasal cavity treated by endoscopic surgery. Preoprative computed tomography (CT), magnetic resonance imaging (MRI), and punch biopsy suggested that the tumor was benign neurogenic tumor confined to right nasal cavity. The tumor was removed with endoscopic surgery completely, and confirmed as neurofibroma by histological and immunohistochemical examination. We discuss the clinical and pathological characters of neurofibroma arising in the nasal cavity.
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조석현,금효섭,진봉준,박문향 대한이비인후과학회 2006 대한이비인후과학회지 두경부외과학 Vol.49 No.10
Chondroid syringoma, or mixed tumor of skin is a benign cutaneous neoplasm of sweat gland origin. It is rare in incidence, andmost frequently found at the head and neck area. It is usually present as a slowly growing, painless intradermal or subcutaneousnodule in patients between the ages of 20 and 60 years. Histologically, there are two types, which are tubular, branching luminatype and small, tubular lumina type, and it contains both epithelial and stromal component. The treatment of choice is completelocal excision. We report a case of chondroid syringoma presenting as a nasal columellar mass in a 50 year old woman with abrief review of literature. (Korean J Otolaryngol 2006;49:1024-6)
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태경,금효섭,이동욱,정진혁,조석현,박동우,오영하 대한이비인후과학회 2006 대한이비인후과학회지 두경부외과학 Vol.49 No.5
Background and Objectives:Pilomatricoma, also known as calcifying epitheliomas of Malherbe is uncommon, benign skinneoplasm that arise from outer root sheath cell of hair follicle or hair follicle of sebaceous glands. In more than half of the cases,pilomatricoma typically involves the head and neck followed by upper extremities and trunk, with the majority occurring inchildren. The purpose of this study is to analyze the data from the authors experience with head and neck pilomatricoma and todiscuss diagnostic and therapeutic management. Subjects and Method:A retrospective analysis of the patients of pilomatricomatreated between 1994 and 2004 revealed 21 cases of head and neck pilomatricoma. Results:The typical clinicalmanifestation of pilomatricoma was non-tender, firm, subcutaneous, and nodular mass. The age range was from 9 months to 62years (mean 17.4 years). The male-to-female ratio was 4:3. The common sites of occurrence were the neck (33%), cheek(24%), suboccipital (14%), preauricular (14%). The size of the mass ranged from 0.5 cm to 3 cm, and the mean was 1.1 cm. CTwith contrast enhancement scans revealed densely calcified, mild enhancing and well circumscribed soft tissue densities insubcutaneous tissues. Additionally, MRI with gadolinum enhancement scans revealed partially enhanced, well demarcated andintermediate signal intensity mass lesions. Surgical excision was curative in all cases. Conclusion:Pilomatricoma is cutaneousneoplasms that occur commonly in the head and neck region. Even if the preoperative diagnosis may be difficult in some cases,pilomaticoma must be considered in the differential diagnosis of a superficial head and neck mass. (Korean J Otolaryngol2006;49:549-53)
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태경,이윤서,금효섭,정진혁,김경래,이형석 대한이비인후과학회 2004 대한이비인후과학회지 두경부외과학 Vol.47 No.5
Background and Objectives:The status of cervical lymph node is important factor influencing the prognosis of patients with oral cavity squamous cel carcinoma. There has been some controversy regarding the treatment of clinical N0 neck in oral cavity Subjects and Method:Authors analyzed outcomes of elective neck dissection by a retrospective study with a review of medical records of 41 oral cavity squamous cell carcinoma patients who had clinical N0 neck. Results:The overall rate of occult neck metastasis was 27%, and the rate of occult metastasis beyond T2 stage was 45%. The occult metastasis rates of the primary sites occult metastasis and other thre had nodal recurence after elective neck dissection. Conclusion:Because there were high occult neck metastasis rate but no significant postoperative complications in using the elective neck dissection, it could be used in T2, T3 or T4 oral cavity squamous cell carcinoma with clinical N0 neck.
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오현교 ( Hyun-kyo Oh ),금효섭 ( Hyouseob Keum ),조승호 ( Seung-ho Cho ),김형태 ( Heong-tae Kim ),문봉희 ( Bong-hee Moon ) 한국정보처리학회 2013 한국정보처리학회 학술대회논문집 Vol.20 No.1
본 연구는 사용자가 센서를 의식하지 않고 편안하게 일상생활을 영위할 수 있는 비침습적 방식의 센서를 활용하여 향후 침대 위에 있는 사람의 움직임을 정량적으로 측정하고자 한다. 이러한 목적으로 필름 형태의 압전센서를 사용하는 센서 시스템을 구축하였으며, 본 논문에서는 구축된 시스템에서 필요한 전처리 과정을 제시한다. 본 연구에서 사용된 압전센서는 침대 매트리스 아래에 설치하였다. 사람의 움직임에 의한 압전센서의 출력 신호를 증폭하고 샘플링하여 PC로 전송하는 컨트롤러, 컨트롤러로부터 센서 데이터를 수신하고, 사용자에게 센서 데이터를 시각적으로 제시하는 모니터링 프로그램을 개발하였다. 본 연구에서는 컨트롤러에서의 노이즈 제거, 증폭, 샘플링 등의 전처리, 모니터링 프로그램에 의해 수집된 센서 데이터에 대한 이동 평균 필터, 불필요한 움직임이 없는 구간을 제거 후 움직임이 있는 구간 추출 등의 전처리 과정을 제시한다. 이러한 전처리 연산은 향후 침대 위 인체의 움직임을 정량적으로 측정하고, 행동유형을 식별하는데 기여하게 될 것이다.
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