Z. Acar, D. Guven, M. Demir, Yekta Şendül, B. Dirim
{"title":"同卵双胞胎的绒毛膜视网膜结肠瘤","authors":"Z. Acar, D. Guven, M. Demir, Yekta Şendül, B. Dirim","doi":"10.5336/OPHTHAL.2016-51300","DOIUrl":null,"url":null,"abstract":"78 n monozygotic twins, the splitting of the zygote occurs between the 8 and 16-cell stages of embryonic development. The mirror-image phenomenon (i.e. expression of features or anomalies on opposite sides) may occur in case of a possible delay in this process.1 This phenomenon may result from genetic or environmental factors that occur before the split into two monozygotic embryos.2 The mirror-image phenomenon is observed only in identical twins, and in approximately 25% of monozygotic twins.3 The mirror-image phenomenon rarely affects ophthalmic features.1 To the best of our knowledge, there have been no reported cases of chorioretinal coloboma in monozygotic twins.","PeriodicalId":190073,"journal":{"name":"Turkiye Klinikleri Journal of Ophthalmology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Mirror Image Chorioretinal Colobomas in Identical Twins\",\"authors\":\"Z. Acar, D. Guven, M. Demir, Yekta Şendül, B. Dirim\",\"doi\":\"10.5336/OPHTHAL.2016-51300\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"78 n monozygotic twins, the splitting of the zygote occurs between the 8 and 16-cell stages of embryonic development. The mirror-image phenomenon (i.e. expression of features or anomalies on opposite sides) may occur in case of a possible delay in this process.1 This phenomenon may result from genetic or environmental factors that occur before the split into two monozygotic embryos.2 The mirror-image phenomenon is observed only in identical twins, and in approximately 25% of monozygotic twins.3 The mirror-image phenomenon rarely affects ophthalmic features.1 To the best of our knowledge, there have been no reported cases of chorioretinal coloboma in monozygotic twins.\",\"PeriodicalId\":190073,\"journal\":{\"name\":\"Turkiye Klinikleri Journal of Ophthalmology\",\"volume\":\"11 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Turkiye Klinikleri Journal of Ophthalmology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5336/OPHTHAL.2016-51300\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Turkiye Klinikleri Journal of Ophthalmology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5336/OPHTHAL.2016-51300","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Mirror Image Chorioretinal Colobomas in Identical Twins
78 n monozygotic twins, the splitting of the zygote occurs between the 8 and 16-cell stages of embryonic development. The mirror-image phenomenon (i.e. expression of features or anomalies on opposite sides) may occur in case of a possible delay in this process.1 This phenomenon may result from genetic or environmental factors that occur before the split into two monozygotic embryos.2 The mirror-image phenomenon is observed only in identical twins, and in approximately 25% of monozygotic twins.3 The mirror-image phenomenon rarely affects ophthalmic features.1 To the best of our knowledge, there have been no reported cases of chorioretinal coloboma in monozygotic twins.
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