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김훈수 ( Hoon Soo Kim ),고현창 ( Hyun Chang Ko ),김문범 ( Moon Bum Kim ),오창근 ( Chang Keun Oh ),권경술 ( Kyung Sool Kwon ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.8
Hidradenoma is a relatively rare benign cutaneous tumor of sweat gland origin showing eccrine (eccrine or poroid hidradenoma) or apocrine (apocrine hidradenoma) differentiation. It usually presents as a slowly growing solitary nodule measuring between 0.5 and 2 cm in diameter. The large variant is rare, but may occur when they grow without appropriate treatment for several years. We report a case of apocrine hidradenoma in a 67-year old woman who presented with a solitary, erythematous, pedunculated, giant mass measuring 10.5×6.7×4.0 cm in size on the left lateral aspect of frontal scalp for 10 years. This is the largest among reported cases in the Korean literature. (Korean J Dermatol 2008;46(8):1056~1060)
뇌자기공명영상을 이용한 천막 절흔의 형태학적 분석 -임상연구-
김훈수 ( Hoon Soo Kim ),조성민 ( Sung Min Cho ),이호국 ( Ho Kook Lee ),변진수 ( Jhin Soo Pyen ),홍순기 ( Soon Ki Hong ),김헌주 ( Hun Joo Kim ) 대한뇌종양학회 2004 대한뇌종양학회지 Vol.3 No.2
Objective:This study was performed to measure anatomical basis for interpretation of the tentorial notch, oculomotor nerve and brainstem using MRI and to develop a classification system for the tentorial notch. Methods:From January 2002 to September 2002, we analized 100 patients with mild head injury who didn`t have space occupying lesion on the magnetic resonance imaging(MRI). The following measurements were done:1) anterior notch width(ANW);2) maximum notch width(MNW);3) notch length(NL);4) posterior tentorial length(PTL);5) interpedunculoclival( IC) distance;6) apicotectal(AT) distance;and 7) inter-third nerve angle. Quatile groups defined by NL were labeled long, short, and midrange, and those defined by MNW were labeled as wide, narrow, and midrange. Results:The patients were composed of 64 men and 36 women whose mean age was 29.6±15.7 year of age(range 2- 61). Mean values are presented as the means±standard deviations into following variations:1) ANW, 22.3±4.4mm; 2) MNW, 32.9±3.6mm;3) NL, 57.6±5.4mm;4) PTL, 30.4±3.0mm;5) AT distance, 25.2±4.8mm;6) IC distance, 18.0±4.9mm;7) inter-third nerve angle, 50.8±6.9°. The types of tentorial notch were wide(16%), narrow (11%), long(12%), short(12%), and typical(17%). Notches that were both wide and long were labeled large(8%), and those that were narrow and short were labeled small(12%). The category of mixed notches(12%) was assigned to tentorial notches that were either wide/short(4%) or narrow/long(8%). Conclusions:The use of MRI to identify the type of tentorial notch and regional anatomy may help neurosurgical decision making.
김훈,김홍범,권세혁,Kim, Hoon,Kim, Hong-Bum,Kwon, Sae-Hyuk 한국조명전기설비학회 1997 조명.전기설비 Vol.11 No.6
광방사에너지에 의해 염료나 안료의 밀도가 감소하며, 밀도 변화는 색변화를 초래한다. 이 연구에서는 방사에너지에 의한 염료밀도의 변화와, 밀도변화에 따른 색변화에 대한 가정을 이용하여 방사에너지에 의한 색변화를 예측할 수 있는 관계식을 만들었다. 또한 실험을 통하여 식중의 손상계수를 산출하였다. 이 식과 계수와 적절성을 검증하기 위하여 시료들을 일반 광원을 변색시키면서 그 변색의 크기를 측정하고 계산치와 비교한 결과, 대부분의 시료에서 일치하는 것을 확인할 수 있었다. 또한 가시 방사대에서 분광 손상계수는 분광 흡수율과 밀접한 관계가 있음을 알 수 있었다. Density of a dye or pigment teduces by radiant energym and dinsity change induces color change. In this paper, we habe worked out an equation to predict the color change by the radiant energy under the assumption of colorant density changing pattern by radiant energy and the color changing pattern by colorant density chane. And the damaging factors in the equation was established by experiments. To evaluate the efectiveness of the equation and the method, several samples were irradiated by common light source and color change was measured. Good coincidence between the ceasured and the calculated color change was found. And it was also found that there is a close relationhaip between the spectral damaging factor and the spectral absorptance in visible wavelength range.