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• W1963706070 abstract "No AccessJournal of UrologyClinical Urology: Original Article1 May 1996Normal Human Ejaculatory Duct Anatomy: A Study of Cadaveric and Surgical Specimens Hiep T. Nguyen, Joan Etzell, and Paul J. Turek Hiep T. NguyenHiep T. Nguyen More articles by this author , Joan EtzellJoan Etzell More articles by this author , and Paul J. TurekPaul J. Turek More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(01)66150-0AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract Purpose: We examined the anatomy of the ejaculatory ducts in normal men and correlated findings with theories of ejaculatory duct obstruction. Materials and Methods: Gross and microscopic anatomical studies were performed on cadaveric and operative specimens derived from radical prostatectomy. Results: Histologically, the ejaculatory ducts are a continuation of the seminal vesicles. However, the thick muscle wall of the seminal vesicle is not present within the ejaculatory duct. Normal ejaculatory duct luminal and wall dimensions are remarkably uniform among men. A luminal diameter of greater than 2.3 mm. defines a dilated system statistically. Conclusions: The largely collagenous ejaculatory ducts may serve as simple semen conduits instead of muscular tubes with spasmodic, sphincteric or peristaltic properties. The anatomical findings presented suggest several possible mechanisms for the prevention of urinary reflux into the ejaculatory ducts. References 1 : The seminal tract in patients with ejaculatory dysfunction: MR imaging with an endorectal surface coil. AJR1992; 159: 337. Google Scholar 2 : Transrectal ultrasonography in the evaluation of infertile man: a report of 3 cases. J. Urol1990; 144: 1469. Link, Google Scholar 3 : Ejaculatory duct obstruction in subfertile males: analysis of 87 patients. Fertil. Steril1991; 56: 725. Crossref, Medline, Google Scholar 4 : Semen anomalies due to voiding defects of the ampullo-vesicular tract. Infertility due to ampullo-vesicular voiding defects. Andrologia1990; 22: 206. Google Scholar 5 : Using transrectal ultrasound in the diagnosis of ejaculatory duct obstruction. Contemp. Urol1991; 3: 47. Google Scholar 6 : Transrectal ultrasound and partial ejaculatory duct obstruction in male infertility. Urology1992; 39: 449. Crossref, Medline, Google Scholar 7 : Histology for Pathologists. New York: Raven Press1992. Google Scholar 8 : The development of the human prostate glands with reference to the development of other structures at the neck of the urinary bladder. Amer. J. Anat1912; 13: 299. Google Scholar 9 : Stenosis of ejaculatory ducts treated by endoscopic resection. J. Urol1973; 109: 664. Link, Google Scholar 10 : Surgery of the seminal vesicles, ampullae, vasa deferentia and spermatic cord. In: The Sexual Glands of the Male. Edited by . New York: Oxford University Press, Inc.1942: 254. Google Scholar 11 : Transrectal US of the seminal vesicles and ejaculatory ducts: clinical correlation. Radiology1988; 168: 625. Crossref, Medline, Google Scholar 12 : The prevalence of cystic dilatation of the ejaculatory ducts detected by transrectal ultrasound (TRUS) in a self referred (screening) group of men. J. Urol1992; 147: 456A. abstract 973. Google Scholar 13 : Transrectal ultrasonography in disorders of seminal vesicles and ejaculatory ducts. Urol. Clin. N. Amer1989; 16: 773. Google Scholar 14 : Transrectal ultrasonography of infertile men. Fertil. Steril1993; 60: 1035. Crossref, Medline, Google Scholar 15 : Transrectal ultrasound in the evaluation of men with low volume azoospermia. J. Urol1993; 149: 1341. Link, Google Scholar 16 : Transrectal prostate ultrasonography as a diagnostic and therapeutic aid for ejaculatory duct obstruction. J. Urol1990; 144: 356. Link, Google Scholar Departments of Urology and Pathology, University of California School of Medicine, San Francisco, California.© 1996 by American Urological Association, Inc.FiguresReferencesRelatedDetailsCited byTUREK P, ASLAM K, YOUNES A and NGUYEN H (2018) OBSERVATIONS ON SEMINAL VESICLE DYNAMICS IN AN IN VIVO RAT MODELJournal of Urology, VOL. 159, NO. 5, (1731-1734), Online publication date: 1-May-1998. Volume 155Issue 5May 1996Page: 1639-1642 Advertisement Copyright & Permissions© 1996 by American Urological Association, Inc.MetricsAuthor Information Hiep T. Nguyen More articles by this author Joan Etzell More articles by this author Paul J. Turek More articles by this author Expand All Advertisement PDF downloadLoading ..." @default.
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• W1963706070 title "Normal Human Ejaculatory Duct Anatomy: A Study of Cadaveric and Surgical Specimens" @default.
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