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황상의,손정미,유연주,강은영 대한산부인과학회 1996 Obstetrics & Gynecology Science Vol.39 No.11
The fetus papyraceus is a rare complication in multiple pregnancy. If one fetus of multiple pregnancy died in uterus remote from term and other fetus did not, the dead fetus with placenta is compressed between the uterine wall and the membrane of living fetu and then the dead fetus becomes a fetus papyraceus. We had experienced a case of fetus papyraceus in twin pregnancy. We report this case with a brief review of the concerned literatures.
황상의,김혜숙,손정미,유연주,강은영 대한산부인과학회 1996 Obstetrics & Gynecology Science Vol.39 No.11
The objective of this study was to investigate clinical characteristics of placental site nodules and plaques. A clinocopathological study was made on a series of 8 cases of placental site nodules and plaques retrospectively, treated at the Department of Obstetrics and Gynecology, Seigang Hospital from 1992 to 1996. The results obtained as follows; 1. The lesions occurred on patients 25 to 39 years of age, and were discovered in an endometrial curettage specimen performed because of menorrhagia or vaginal bleeding. 2. The interval from the most recent known pregnancy to the time of presentation ranged from 1 month to 13 month(average 3.8 months) in this study in which this information was available. 3. Urine pregnancy tests were negative in all 8 cases. 4. Three of patients in this category had undergone normal vaginal delivery, four had undergone cesarean section and one had undergone D&C before presentation. 5. Microscopic examination disclosed single or multiple, mostly well-circumscribed, oval, or plaquelike, variably cellular nodules that were characteristically extensively hylinized. The lesional cells typically had abundant cytoplasm that was amphophilic, eosinophilic, or occasionally vacuolated, and irregular, often degenerative-appearing nuclei; mitotic figures were absent or rare. Chronic endometritis of variable degree evidenced by plasma cells was noted. Clinically, placental site nodule or plaque is confused with retained placenta, placental site trophoblastic tumor. The lesions may cause vaginal bleeding.
황상의(SU Hwang),송승규(SK Song),황순경(SK Whang),김승조(SJ Kim) 대한산부인과학회 1973 Obstetrics & Gynecology Science Vol.16 No.4
임신 40주 초산부에서 하나의 큰 방광 결석의 합병으로 태아의 산도통과를 방해하여 난산을 초래함으로써 복식분만 및 결석제거술을 하였다. 본 예는 그외 신수종, 수뇨관수종 및 만성방광염을 동반하였다. A case of dystocia caused by a large bladder stone complicated in term pregnancy was presented. This 30 year-old primipara also was combined with hydronephrosis, hydroureter and chronic cystitis. The textbook and papers concerned to this problems were reviewed briefly.
AAAS 생태개념 검사도구를 이용한 중·고등학생들의 생태 개념수준 및 오개념 탐색
이상의 ( Sangeui Lee ),황효정 ( Hyojeong Hwang ),하민수 ( Minsu Ha ),박은주 ( Eunju Park ) 한국생물교육학회 2021 생물교육 Vol.49 No.2
This study aimed to confirm the reliability and validity of the translated version of the Ecological Concept Test Tool of the American Association for the Advancement of Science (AAAS), and to identify ecological misconceptions that appear to students. The translated test papers consisted of two linked questionnaires, type A and type B, which consisted of the same question, and were put into 837 middle and high school students, and the types and causes of the difference in scores by school level were analyzed. The reliability of the translated version of the test tool used in this study showed a Cronbach alpha value of 0.89 or higher in both types of questions, and an MNSQ value of 2 or less in the item validity analysis, confirming that these are very suitable items. From the analysis results of the students' ecological misconceptions, it was confirmed that students were more likely to choose a specific incorrect answer in the ecological question related to the food web than in other questions, and that they had a relatively large number of misconceptions about this. As a result of checking the difference in scores of students by school level, scores were significantly higher in the high school student group than in the middle school student group, which was estimated to be related to the absence of ecological education in the life science curriculum of the middle school.