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- W2399691609 abstract "No AccessJournal of Urology1 Sep 1991Three-B Muscular Arrangement at the Ureteropelvic Junction and its Changes in Congenital Hydronephrosis: A Stereo-Morphometric Study Hiroyuki Eaneto, Seiichi Orikasa, Tamihiko Chiba, and Tohru Takahashi Hiroyuki EanetoHiroyuki Eaneto More articles by this author , Seiichi OrikasaSeiichi Orikasa More articles by this author , Tamihiko ChibaTamihiko Chiba More articles by this author , and Tohru TakahashiTohru Takahashi More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(17)37959-4AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Ureteral walls were obtained from twelve autopsies without urological diseases and from surgical material of twelve patients operated for congenital hydronephrosis. The specimens were submitted to computer-assisted analysis of 3-D muscular architecture at the ureteropelvic junction (UPJ). Serial histologic sections in parallel with the wall were prepared. A geometric model was introduced to simplify the muscular layer, replacing bundles with vectors of corresponding size and direction. The vector distribution visualized that normally, the ureteral muscles change their arrangement with age, from a circular pattern in neonates to an oblique mesh in adults. In addition, longitudinal muscles emerged at the age of two years in the subepithelial layer. In patients with congenital hydronephrosis, not only were such growth-related changes ambiguous or lacking, but there also were various abnormalities; segmental muscular hypoplasia, disarrangement of bundles or lack of longitudinal fibers. These were considered to closely correlate with the urinary obstruction in patients with this disease. © 1991 by The American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 146Issue 3September 1991Page: 909-914 Advertisement Copyright & Permissions© 1991 by The American Urological Association Education and Research, Inc.Keywordspathologymorphometrysmooth musclehydronephrosisureterMetricsAuthor Information Hiroyuki Eaneto More articles by this author Seiichi Orikasa More articles by this author Tamihiko Chiba More articles by this author Tohru Takahashi More articles by this author Expand All Advertisement Loading ..." @default.
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- W2399691609 date "1991-09-01" @default.
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- W2399691609 title "Three-B Muscular Arrangement at the Ureteropelvic Junction and its Changes in Congenital Hydronephrosis: A Stereo-Morphometric Study" @default.
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