1.Open reduction of fractured mandibular condyles: overview.
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1991;17(2):1-10
No abstract available.
Mandibular Condyle*
4.Arm Wrestler's Injury: Report of 3 cases
Myung Sang MOON ; In KIM ; Ho KANG ; Kyu Sung LEE
The Journal of the Korean Orthopaedic Association 1977;12(1):51-54
No abstract available in English.
Arm
5.Extramedullary Plasmacytoma: One Case
Chi Joong KANG ; Sang Keun OH ; Han Kyu KIM
The Journal of the Korean Orthopaedic Association 1983;18(4):817-820
No abstract available in English.
Plasmacytoma
6.Malignant Mixed Germ Cell Tumor and Contralateral Gonadoblastoma in Turner's Syndrome, 45, X0/46, XY Karyotype: A case report.
Dong Wook KANG ; Jin Man KIM ; Kwang Sun SUH ; Kyu Sang SONG ; Dae Yung KANG
Korean Journal of Pathology 1995;29(1):85-90
Turner's syndrome results from complete or partial monosomy of the X chromosome and is characterized by hypogonadism or related other congenital anomalies in phenotypic females. In these patients, there are failure to develop normal secondary sex characteristics, amenorrhea, or short stature at puberty and the ovaries are reduced to atrophic fibrous strands devoid of ova and follicles(streak gonads). Individuals with this condition are particularly prone to the development of gonadoblastoma. For this reason, the gonads should be early removed and supplemental estrogen therapy given. We experienced a case of Turner's syndrome, 45, XO/46, XY karyotype in a 20-year-old phenotypic female complained an amenorrhea. On the exploratory laparotomy, the right gonadal mass is sevearly adhered to the adjacent organs and measures 8 x 5 x 5 cm in dimension and 75gm in weight and shows multiple foci of hemorrhage with necrosis. The left streak gonad measures 3.5 x 2 x 1.5 cm in dimension and shows multiple foci of calcification. Microscopically, the right gonadal mass reveals malignant mixed germ cell tumor, composed of endodermal sinus tumor, composed of endodermal sinus tumor with dysgerminoma and gonadoblastoma. The left streak gonad consists of mainly dense fibrous connective tissue and shows some foci of calcification associated with gonadoblastoma. On immunohistochemical and special stainings, the cytoplasm and hyalin droplets of the endodermal sinus tumor component reveal strong positivity to the a-fetoprotein and PAS. After removal of both gonads, the serum level of the a-fetoprotein is markedly down from 1742ng/ml to 2.6 ng/ml.
Female
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Humans
7.Pleomorphic Xanthoastrocytoma: A Case Report.
Seong Ki MIN ; Dong Wook KANG ; Kyu Sang SONG ; Dae Young KANG ; Seong Ho KIM
Korean Journal of Pathology 1993;27(6):666-669
Pleomorphic xanthoastrocytoma is histologically characterized by marked cellular pleomorphism of lipid-laden neoplastic astrocytes and bizarre giant cells showing mitotic figures and high cellularity. Inspite of its ominous-looking microscopic features, howerver, the prognosis is usually favorable. This tumor develops mainly in the supratentorial area of young people and frequently involves the leptomeninges. We experienced a case of pleomorphic xanthoastrocytoma in 18 year-old-male. In addition to the cellular pleomophism, the prominent reticulin fibers surround the individual tumor cells or the tumor cells nests. Immunohistochemical staining and electron microscopy revealed glial fibrillary acidic protein(GFAP) expression and pericytoplasmic basal lamina in the tumor cells.
8.The Effect of Tumor Removal and Administration of OK432 on the Splenic Natural Killer Cell Activity in the Subcutaneous Tumor Bearing Rats.
Kyu Yun JANG ; Hyun Sang YOON ; Myoung Jae KANG ; Ho Yeul CHOI ; Sang Ho KIM
Korean Journal of Pathology 2000;34(2):105-112
To investigate the effect of tumor removal and administration of OK432 on the splenic natural killer (NK) cell activity in the subcutaneous tumor bearing rats, NK cell activity assay using a 4-hour 51Cr release assay and flow cytometric analysis for NK cell population were performed. The results were as follows: 1. Splenic NK cell activity and population in the subcutaneous tumor bearing rats decreased along with the growth of the tumor. 2. The rats with subcutaneous tumor removal showed decrease of splenic NK cell activity, but splenic NK cell population was not decreased. 3. In the rats with subcutaneous tumor removal and OK432 administration, splenic NK cell activity was significantly increased 1 week after administration of OK432 and then gradually returned to normal, whereas increase of NK cell population was not significant. In the present study, splenic NK cell activity was significantly decreased despite removal of subcutaneous tumor. But with the administration of OK432, splenic NK cell activity returned to normal. Considering the role of NK cells on the first line of defense against the metastatic implantation of circulating tumor emboli, we suggest that perioperative administration of immunopotentiator such as OK432 may improve the patient's outcome after surgery of human neoplasm.
Animals
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Humans
;
Killer Cells, Natural*
;
Picibanil*
;
Rats*
;
Spleen
9.Structural Evidence Against Hormonal Theraphy in Cryptorchid Testis-Abnormal Gubernacular Attachment.
Woong Kyu HAN ; Sang Won HAN ; Chul Kyu CHO ; Jang Hwan KIM ; Min Jong LEE ; Seung Kang CHOI
Korean Journal of Urology 2000;41(12):1528-1532
No abstract available.
10.Effect of Eicosapentaenioc acid and Butyrated hydroxyanisole on Hypercholestrolemic Diet Induced Atherogenesis in Rabbit.
Choong Sik LEE ; Jeung Mok CHOI ; Sung Ki MIN ; Kyu Sang SONG ; Dae Young KANG ; Kyu LYM
Korean Journal of Pathology 1994;28(3):235-245
It has been suggested that the fish oil can reduce atherogenesis in humans and animals, and that peroxidation of lipoproteins may be a major factor causing atherosclerotic lesions. We tested these posibilities in rabbits fed an atherogenic diet by comparing the effect of a eicosapentaenoic acid(EPA: a major component of fish oil)supplement and a butyrated hydroxyanisole(BHA: antioxidant)diet supplement. Tweenty-eight young male New Zealand White rabbits were used in this study. The animals were divided by control, cholesterol fed only, cholesterol + EPA, and cholesterol + BHA groups. The experimental course lasted 12 weeks and animals were sacrificed periodically(2, 5, 8, 12weeks)for quantitative studies of aortic atherosclerosis using light and electron microscopy. Plasma cholesterol levels were determined and lipopreteins were separated periodically. The cholesterol fed only group showed an increased serum cholseterol level and atherosclerotic lesions from 5 weeks of experiments. The EPA supplement resulted in similiar serum cholesterol levels with cholesterol fed only group, but greater lesion than cholesterol fed only group. The BHA supplement resulted in higher serum cholesterol levels except VLDL-cholesterol than EPA supplement group. However, the atherosclerotic lesion was not increased. Our studies support the theory that oxidative modification of lipoproteins is important for the atherogenesis and antioxidant may have a protective effect. However, it failed to show antiatherogenesis effect of fish oil.
Male
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Humans
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Rabbits
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Animals