http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
개별검색 DB통합검색이 안되는 DB는 DB아이콘을 클릭하여 이용하실 수 있습니다.
통계정보 및 조사
예술 / 패션
<해외전자자료 이용권한 안내>
- 이용 대상 : RISS의 모든 해외전자자료는 교수, 강사, 대학(원)생, 연구원, 대학직원에 한하여(로그인 필수) 이용 가능
- 구독대학 소속 이용자: RISS 해외전자자료 통합검색 및 등록된 대학IP 대역 내에서 24시간 무료 이용
- 미구독대학 소속 이용자: RISS 해외전자자료 통합검색을 통한 오후 4시~익일 오전 9시 무료 이용
※ 단, EBSCO ASC/BSC(오후 5시~익일 오전 9시 무료 이용)
The eletron microscope has become an established and indispensable tool in diagnostic pathology. There is an increasing demand of ultrastructural studies for the cases that pathologists in making definite diagnosis. In this paper the author described representative cases that were experienced at the Seoul National University Hospital since 1985. Characteristic ultrastructural features of these diseases are presented along with electron micrographs. Among diseases involving parenchymal cells, several examples of abnormalities of organelles, metabolic disturbance, hair and ciliary anomaly and red cell anomaly are described. Among infectious agents 4 viruses, 2 fungi, 2 protozoa and 2 metazoa are described.
Pathologic-anatomic and pathologic-histologic studies were made on one autopsy case of congenital syphilis which waas serologrcally confirmed in maternal and cord blood, being accompanied with adrenal cyomegalia. Microscopical findinfs are principally composed of diffuse visceral fibrosis and widespread extramedullary hemopoiesis. Visceral fibrosis was most severe in the liver and pancreas, although spleen, lungs, kidneys and adrenal glands are also involved. Hear shows a focal hematopoietic lesion. Thymus cintains many foci of Dubois abscess. Liver is characterized by extensive periportal and intralobular connective tissue increase and laso extensive hematopoietic foci. The fibrotic change is more marked in right lobe especially around ductus venusus. Giant cell transformation of hepatic cells is also prominent. Lungs are enlarged and uniformly firm. In teralveolar septa show diffuse connective tissue increase and mononuclear cell infiltration. spleen is enlarged and also shows connective tissue proloferatin and numerous macrophages in between the splenic sinusoids. Adrenal gands are slighty thickended in capsular structure and the connective tissue increase is focally extended inward between the cords of cells of the permanent cortex. The fetal portion of the cortex shows a widespread change in the size, shape and nuclear pattern of its constituent cells. The cells are polyhedral measuring up to 45μ in diameter, and structures resembling inclusions are present. Brain shows syphilitic leptomenimgitis.
It is the variability of biological behaviors within a certain supposedly homogeneous group of malignancy, that has led to the concept of "biological predeterminism" in cancer, and accordingly has seriously challenged the traditional concept of "early diagnosis" and radical procedure as the most valid instrument for the control of cancer. This investigation was prompted to observe some histologic changes in the regional lymph nodes in patients with cancer, and their possible inter-relationship. In this study, 138 lymph nodes from 63 cases of carcinomas (stomach carcinoma; 35 cervix carcinoma; 15, and breast carcinoma; 13) were examined. Of these lymph nodes 30 showed metastatic involvement. The following observations and conclusion are made; Histologic change in the regional lymph nodes in patients with any one of the above three types of carcinoma are similar to each other. There seem no cancer-specific changes to exist in the regional lymph nodes with or without metastases in patients of the above three types of malignancy. The general or most freguent changes in the regional lymph nodes are sinus histiocytosis, follicular hyperplasia and reticuloendotheliosis of the pulp. Sinus histiocytosis is most prominent in the regional lymph nodes free of metastatic cancer. And in the lymph nodes with metastatic cancer, the greater the metastatic lesion, the greater is lymphoid hyperplasia in the remainder of the node and lesser is the visible histiocytosis. Lymph node metastasis induces vascular occlusion and further leads to the changes in the pulp, and at this time plasma cells are usually prominent. Sinus histiocytes might have been derived from several types of cells, but their endothelial derivation appears to be the essential feature. However, these findings are of particular interest inregard to a possible role of the reticulo-endothelial system concerning the biological control of tumor growth.
Congenital malformations are structural defects present at birth. Birth defect encompasses all the anomalies, either morphologic or functional, present at birth. The incidence of congenital malformation is estimated to be 5% among liveborns in Korea. This figure is more or less same in most other countries. The cause of congenital malformation is difficult to determine in most cases. In a small proportion of cases it can be attributed to genetic to genetic factor, chromosomal anomalies or certain prenatal infections. Various causative factor and teragenetic mechanism are discussed morphologically.