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Immunohistochemical Diagnosis of Renal Pelvis Transitional Cell Carcinoma in a Dog
양형석,강상철,김재훈 한국임상수의학회 2013 한국임상수의학회지 Vol.30 No.4
A 9-year-old, male, Doberman pinscher dog with 5-month history of intermittent hematuria, vomiting and glucosuria was referred to local animal hospital. Abdominal ultrasonography showed an irregular and hyperechoic mass in the renal medulla of the enlarged left kidney. Grossly atrophied renal cortex and medulla and marked hydronephrosis were observed on the cut surface of kidney. A single, numerous papillary projected, pedunculated mass 4~5.5 cm in diameter was occupied in renal pelvis, and extended from pelvis to the inlet of ureter. Histopathologically, the mass had numerous papillary structures with arboriform pattern. These papillae were consisted of fibro-vascular stalks that were lined by multiple layers of neoplastic urothelium (transitional epithelium) with marked cellular atypia. Immnohistochemical (IHC) staining demonstrated that the neoplastic cells showed strong positive reactions for cytokeratin (CK) 7, CK 19, CK clone MNF116 and CK high molecular weight, but negative signals for CK 8 low molecular weight. Based on the gross findings, histopathology and CKs profile using IHC staining, this mass was diagnosed as renal pelvis transitional cell carcinoma in a dog.
혁신지향문화와 혁신행동이 데이터기반행정 추진 역량에 미치는 영향: 업무자율성의 매개효과를 중심으로
양형석,조수향,남태우 한국지역정보화학회 2024 한국지역정보화학회지 Vol.27 No.1
최근 들어 정보통신 기술이 급속하게 융합・발전하면서 4차 산업혁명을 주도하고 있으며, 4차 산업혁명의 중요한 화두로서 데이터에 기반한 업무 효율화가 강조되고 있다. 이에, 본 연구에서는 공공조직의 데이터기반행정 추진 역량을 강화하기 위해 구성원들이 어떠한 요소를 중요하게 인식하고 있는지 규명하고자 하였다. 한국행정연구원에서 수행한 ‘클라우드 전환 시대 데이터기반행정에 관한 인식조사’ 자료를 활용하였으며, 위계적 회귀분석과 매개효과분석을 실시하여 결과의 신뢰도를 확보하였다. 분석 결과, 혁신지향문화에 대한 인식, 혁신행동에 대한 인식, 업무자율성에 대한 인식이 긍정적일수록 데이터기반행정 추진 역량에 대해 긍정적인 인식을 보였으며, 업무자율성에 대한 인식은 혁신지향문화 및 혁신행동에 대한 인식과 데이터기반행정 추진 역량에 대한 인식 간의 관계를 유의하게 매개하였다. Recently, information and communication technologies are rapidly converging and developing, leading to the Fourth Industrial Revolution, and data-based work efficiency is being emphasized as an important topic in the the Fourth Industrial Revolution. Accordingly, this study aimed to identify the elements that members perceive as important to enhance the Progress Capacity of public organizations for Data-Based Administration. Data from the ‘Perception Survey on Data-Based Administration in the Cloud Transition Era’ conducted by the Korea Institute of Public Administration were used, and hierarchical regression analysis and mediation effect analysis were conducted to secure the reliability of the results. As a result of the analysis, the more positive the perception of Innovation-Oriented Culture, the perception of Innovative Work Behavior, and the perception of Work Autonomy, the more positive the perception was about the Progress Capacity of Data-Based Administration. In addition, the perception of Work Autonomy significantly mediated the relationship between the perception of Innovation-Oriented Culture and Innovative Work Behavior and the perception of Progress Capacity for Data-Based Administration.
양형석,강상철,배종희,김재훈,Yang, Hyoung-Seok,Kang, Sang-Chul,Bae, Jong-Hee,Kim, Jae-Hoon 대한수의학회 2006 大韓獸醫學會誌 Vol.46 No.3
A 7-month-old brown pig with a discoid and pedunculate mass measuring $14.0{\times}12.5{\times}2.5cm$ on the skin of the right shoulder was noted at the slaughter house in Jeju. The surface of mass approximately $7{\times}4cm$ was interfaced with skin. The color of mass with firm consistency was mainly black and partially white on cut surface. Histopathologically, numerous unencapsulated endocrine-like cellular nodules of epithelioid cell type with abundant intracytoplasmic black pigment, melanin, were occupied in dermis and subcutis. Most of nodules in deep dermis were surrounded by lightly pigmented spindle cells and loose fibrous tissues. Mitotic figures were infrequently observed. The overlying epidermis was hyperplastic due to the down-growth of rete peg. Based on the gross and histopathologic findings, this case was diagnosed as cutaneous melanoma. In our best knowledge, this is the first case of swine cutaneous melanoma in Korea.
양형석,양나연,강완철,강상철,강홍원,김재훈,배종희,Yang, Hyoung-Seok,Yang, Na-Yeon,Kang, Wan-Cheul,Kang, Sang-Chul,Kang, Hong-Won,Kim, Jae-Hoon,Bae, Jong-Hee 대한수의학회 2004 大韓獸醫學會誌 Vol.44 No.2
Total 160 head of porcine kidneys were examined for gross and histopathological lesions and polymerase chain reaction (PCR) for porcine circovirus type 2 (PCV-2), porcine parvovirus (PPV), Leptospira species and porcine reproductive and respiratory syndrome virus (PRRSV). Grossly, 137 kidneys (85.6%) had lesions characterized by the presence of the scattered white foci. Microscopically, multifocal interstitial nephritis, which classified into 4 grades such as, no lesion (Score 0), mild lesion (Score 1), moderate lesion (Score 2) and severe chronic lesion (Score 3) with fibrosis, was observed in 159 cases (99.4%). The histopathologic mean score for multifocal interstitial nephritis was significantly different (P<0.05) between the cases of PCV-2 single infection and the cases of co-infection with PCV-2 and PPV. According to PCR evaluation, PCV-2 were detected in 73.8% (118 cases), PPV were in 66.9% (107 cases), however Leptospira spp. and PRRSV were negative in all kidneys. Both PCV-2 and PPV were detected in 52.5% (84 cases). In 84 cases co-infected with PCV-2 and PPV, the occurrence of lymphoid follicle and vasculitis were observed as 65.5% (55 cases) and 26.2% (22 cases), respectively. These results revealed that PCV-2 and PPV were major infectious agents for interstitial nephritis in slaughtered pigs, Jeju. And the histopathologic lesions of multifocal interstitial nephritis were more severe in the case co-infected with PCV-2 and PPV.
양형석,강상철,김황룡,우계형,김재훈 한국임상수의학회 2011 한국임상수의학회지 Vol.28 No.4
A dome-shaped subcutaneous nodular mass was detected on the forehead of 2-year-old mixed cattle encountered at Jeju slaughter house. The mass showed distinctive greasy appearance and float in 10% buffered formalin. Mass was well demarcated with other tissues, and firm in consistency and white-yellowish color on cut surface.Histopathologically, subcutaneous mass was well circumscribed but unencapsulated. This mass was composed of larger lipocytes or more variability in size than normal mature lipocytes. The cytoplasmic lipid of tumor cells could be demonstrated using Oil red O staining. Based on the gross and histopathologic findings, this case was diagnosed as subcutaneous lipoma in cattle. In our best knowledge, this is the first case of bovine lipoma in Korea.