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우계형,김하영,박정원,백은정,김진영,최정업 한국동물위생학회 2007 韓國家畜衛生學會誌 Vol.30 No.4
A 16yearold female mixed dog was submitted for examination at the pathology division of national veterinary research and quarantine service(NVRQS). Grossly, white or grayish spherical, multinodular, firm to friable masses were present in the tibiofibula to the pharenge area of the right limb, and dysphagia, breathing difficulties and tachypnea were shown. Varioussized white or grayish black masses were scattered in lungs and diaphragm and one mass was observed in the trachea and in the jejunum, respectively. Histopathologically, the neoplastic cells were composed of polygonal or spindle shaped cells with various sized round to oval nuclei and abundant cytoplasm. These cells formed lobules or nests separated by fine connective tissue and contained little amount of melanin pigments. Melanin pigments were stained dark gray or black with FontanaMasson method. Melanosomes were also ultrastructurally demonstrable by electron microscopy. Based on above results, the present case was diagnosed as canine malignant melanoma originating from the lower limb and digit.
조직인공소화법과 ELISA를 이용한 국내 출하돈의 선모충(Trichinella spiralis) 감염실태 조사
서흔수,우계형,윤희정,Seo, Hunsu,Woo, Gye-Hyeong,Youn, Hee-Jeong 대한수의학회 2004 大韓獸醫學會誌 Vol.44 No.2
Trichinella spiralis is one of the important zoonotic parasites with a wide variety of vertebrates hosts in nature. The purpose of this study were to analyze ESP(Excretory-Secretory Protein) antigen, to evaluate ELISA for the serological diagnosis of Trichinosis, and to survey T. spiralis infection in finishing pigs using the pepsin digestion method and ELISA in Korea. In the analysis of ESP antigen by SDS-PAGE and Western blot, 4 major bands (70, 55, 52.6, and 49 kDa) were revealed from the ESP antigen. Predilection sites of T. spiralis were the diaphragm, the tongue, masseter muscles, intercostal muscle, and hindlimb in orders in the experimentally infected rats. Sera from 581 swine were tested by ELISA with ESP antigen. The 54 (9.3%) sera were suspected as positive reactors, however, these 54 sera were determined as false positives by the use of Western blotting. This study demonstrated that the ELISA was not suitable for the examination of T. spiralis in pork. The diaphragm muscle samples of 251 finishing pigs were tested by the method of pepsin-digestion for the presence of Trichinella larvae, however, T. spiralis was not detected from the samples. We could not find out T. spiralis infection in pig in Korea pork.
2008년 국내 고병원 조류인플루엔자 발생 관련 의사환축 등 시료에 대한 검사결과
배유찬,우계형,김하영,박중원,이종형,주이석,Bae, Yu-Chan,U, Gye-Hyeong,Kim, Ha-Yeong,Park, Jung-Won,Lee, Jong-Hyeong,Ju, Lee-Seok 대한수의사회 2008 대한수의사회지 Vol.44 No.11
2008년 고병원성 조류인플루엔자의 발생으로 인해 양축 농가, 방역기관 관계자를 포함한 많은 국민들이 큰 시련을 겪었다. 다행히 이 질병이 초기에 근절되어 우리나라는 고병원성 조류인플루엔자 청정국임을 선포하게 되었다. 이 질병의 조기 근절에는 신속 정확한 진단이 기반이 되어 적절한 방역 대책이 수행되었기 때문으로 생각한다. 본고에서는 금년 고병원성 조류인플루엔자 발생과 관련되어 국립수의과학검역원 질병진단센터에서 수행한 의사환축 신고건, 병성감정 의뢰건, 역학조사 관련 시료 등에 대한 정밀검사 결과를 보고하고자 한다.
Eyelid Squamous Cell Carcinoma in a Horse in Jeju
김재훈,우계형 한국임상수의학회 2013 한국임상수의학회지 Vol.30 No.5
An 8-year-old, female, mixed Thoroughbred horse was presented for the evaluation of the left upper eyelid mass with ocular discharge during 4 months. After unilateral surgery, excised eyelid mass and left eye were submitted for diagnosis. Grossly, the removed mass was 6 × 7 × 2 cm in size and dome shape with rough irregular surface. On the cut surface, mass was firm and yellowish white in color. Histopathologically, severely proliferated stratified squamous epithelia were heavily invaginated into dermis, and then formed rete ridge or numerous squamous islands. These neoplastic islands were composed of multiple layers of prickle cells with intercellular bridge and central laminated keratin pearls or necrotic cellular debris. Based on the above results, this case was diagnosed as squamous cell carcinoma in upper eyelid of horse.