1.Induction of preneoplastic lesion in the large intestine of rats by oral administration of 2-amino-1-methyl-6-phenylimidazo4,5-bpyridine.
Yong Suk KIM ; Kwang Soo LEE ; Kye Young JUN
Journal of the Korean Society of Coloproctology 1993;9(2):125-130
No abstract available.
Administration, Oral*
;
Animals
;
Intestine, Large*
;
Rats*
2.Induction of preneoplastic lesion in the large intestine of rats by oral administration of 2-amino-1-methyl-6-phenylimidazo4,5-bpyridine.
Yong Suk KIM ; Kwang Soo LEE ; Kye Young JUN
Journal of the Korean Society of Coloproctology 1993;9(2):125-130
No abstract available.
Administration, Oral*
;
Animals
;
Intestine, Large*
;
Rats*
3.Granular Cell Tumor of the Esophagus: Three cases of report.
Kye Bem LEE ; In Sun KIM ; Seung Yong PAIK
Korean Journal of Pathology 1987;21(1):20-25
Three cases of granular cell tumor in esophagus removed endoscopically are present. Immunohistochemical and electron microscopic studies confirmed that this tumor is originated from schwann cell.
5.Obstructive pneumonitis of right lower lung field.
Kang Hyun AHN ; Chong In LEE ; Yong Gyu LEE ; Suk Joong YONG ; Kye Chul SHIN
Tuberculosis and Respiratory Diseases 1992;39(4):366-369
No abstract available.
Lung*
;
Pneumonia*
6.A Case of Cutaneous Angiomyolipoma.
Yong Suk LEE ; Sang Eun MOON ; Phil Soo AHN ; Kwang Hyun CHO ; Kye Yong SONG
Annals of Dermatology 1996;8(4):247-249
We describe a case of cutaneous angiomyolipoma found in the ear lobe, that is not associated with tuberous sclerosis. The lesion developed on the youngest patient yet reported in the literature.
Angiomyolipoma*
;
Ear
;
Humans
;
Tuberous Sclerosis
7.Electron Microscopic Study on Mitochondria and Cytochrome Oxidase Activity Following Acute Carbon Monoxide Exposure in Rat Myocardium.
Dock Yong CHONG ; Young LEE ; Soo Hun CHO ; Kye Yong SONG
Korean Circulation Journal 1988;18(1):69-83
The problem of carbon monoxide intoxication has been increasing since 1950s and it is still regarded as one of the most serious public health problem in Korea. If the patients survives the acute episode, elimination of carbon monoxide occurs in the rate of a halt-time of 3 to 4 hours. Nevertheless, there may remain after effect. Therefore, the present study was desinged to elucidate the change of myocardial tissue caused by acute carbon monoxide poisoning were evaluated by electrton microscopic observation of the severity of the mitochondrial swelling and cytochrome oxidase activity, which was demonstrated by histochemical staining with diaminobenzidine(DAB). Male Sprague-Dawley rats were exposed to the carbon monoxide of 1500 ppm for 150 minutes. They were divided into two groups ; one group were treated with hyperbaric oxygenation 15 minutes after carbon monoxide exposure, the other were not treated. Rats were sacrified 6 hours, 12 hours, 1 day, 3 days, 7days, 14 days, and 21 days after carbon monoxide exposure. The specimens were collected from the apex of the heart. In the group without hyperbaric oxygenation, mitochondrial swelling subsided 21 days after carbon monoxide exposure accompained by restoration of cytochrome oxidase activity. On the other hand, with hyperbaric oxygenation, healing process was shortened. Cytochrome oxidase activity was restored 7 days after carbon monoxide exposure.
Animals
;
Carbon Monoxide Poisoning
;
Carbon Monoxide*
;
Carbon*
;
Cytochromes*
;
Electron Transport Complex IV*
;
Hand
;
Heart
;
Humans
;
Hyperbaric Oxygenation
;
Korea
;
Male
;
Mitochondria*
;
Mitochondrial Swelling
;
Myocardium*
;
Public Health
;
Rats*
;
Rats, Sprague-Dawley
8.Calcifying Synovial Sarcoma.
Nam Bok CHO ; Tae Jin LEE ; Mi Kyung KIM ; Yong Wook PARK ; Kye Yong SONG
Korean Journal of Pathology 1995;29(4):536-539
A case of calcifying synovial sarcoma, occuring in the deep muscle fascia of the left thigh is reported. The presence of extensive calcification in synovial sarcoma is a favorable sign for prognosis. The patient was a 31-year-old female. The tumor mass had been present for 3 years, accompanying local tenderness. X-ray revealed a soft tissue tumor with central calcification, which was located between the adductor magnus and brevis of the left thigh. The tumor size was 7 x 5.5 cm. There was no connection with the knee joint or the femur. Grossly, the tumor was a relatively well circumscribed hard tumor with massive calcification. Microscopically, the tumor was composed of predominantly spindle cells with accompanying hyalinization, numerous spherical concretions and ossification. The epithelial component was not clearly noted. Mitotic figures were rarely noted in the densely cellular area. Immunohistochemical staining for EMA, S-100, vimentin, and carcinoembryonic antigen was negative while vimentin and cytokeratin were weakly and focally positive. EM study revealed multiple desmosome-like calcification intercellular junctions with a slit-like lumen and an incomplete basal lamina, which suggest that tumor show these cells were undergoing epithelia] differentiation. Above evidence suggest that this tumor is a synovial sarcoma associated with a large area of calcification, a so called calcifying synovial sarcoma. No recurrence was noted in one and half years of follow up.
Female
;
Humans
9.A Case of Woolly Hair.
Sang Chin LEE ; Jong Yuk YI ; Si Yong KIM ; Baik Kee CHO ; Kye Yong SONG
Annals of Dermatology 1994;6(2):236-239
No abstract available.
Hair*
;
Microscopy, Electron
10.Axisymmetric Contact Stress analysis of an Artificial Hip Joint of the Conical Fitting Type
Yong San YOON ; Young Yong KIM ; Kye Lim LEE ; Seung Key KIM ; Young Hoon KANG
The Journal of the Korean Orthopaedic Association 1989;24(6):1665-1672
The purpose of this study is to investigate the effect of the ball-cone contact interface variation on the ceramic ball stress which is the dominant factor of the design of the moldular artificial hip joint. A contact stress analysis problem is formulated using the optimization principle and finite element analysis technique on the ball-cone system of three dimensional axi-symmetrical model, Numerical procedure is employed to get the solution for varying angles of cones and angular mismatches between the ball and cone interfaces. There is a fair amount of friction in the interface and included in the analysis model.
Ceramics
;
Finite Element Analysis
;
Friction
;
Hip Joint
;
Hip