title: [Semen expulsion under the ureterocystoscope].
abstract: OBJECTIVE
  To determine the exact location of the opening of the ejaculatory duct in men and provide some basic anatomical evidence for seminal vesiculoscopy and the treatment of ejaculatory duct obstruction.
  
  
  METHODS
  We performed ureterocystoscopy for 21 male patients aged 26 - 47 years with hematuria (n = 12), hematospermia (n = 2), glandular cystitis (n = 6), and anejaculation after radical resection of rectal carcinoma (n = 1), and meanwhile, with the consent of the patients, massaged the prostate and ejaculatory duct and observed the outlet of the expelled fluid. Under the microscope, we described the fluid samples with sperm as the expulsion from the ejaculatory duct.
  
  
  RESULTS
  Ureterocystoscopy showed that the exact anatomical sites of the expulsion of prostatic fluid and semen in the patients were the side and lower side of the prostatic utricle opening above the verumontanum and the ventral side of the verumontanum. Quantities of sperm were found in the expulsion fluid of 13 of the patients, and no expulsion, including semen, was seen from the prostatic utricle opening.
  
  
  CONCLUSIONS
  Anatomically, the ejaculatory duct openings of males are located at the two sides of the verumontanum adjacent to the opening of the prostatic utricle, rather than in the prostatic utricle above the verumontanum.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Du
authors.forename: Bin
authors.initials: B
authors.lastname: Wu
authors.forename: Bao-Lin
authors.initials: BL
authors.lastname: Zou
authors.forename: Zheng-Tao
authors.initials: ZT
authors.lastname: Li
authors.forename: Da-Lei
authors.initials: DL
authors.lastname: Yang
authors.forename: Bo-Chen
authors.initials: BC
authors.lastname: Pan
mesh_terms: D000328:Adult; D020684:Cystoscopes; D004542:Ejaculation / Q000502:physiology*; D004543:Ejaculatory Ducts / Q000033:anatomy & histology* / Q000502:physiology; D004724:Endoscopy / Q000295:instrumentation / Q000379:methods*; D006417:Hematuria; D051516:Hemospermia; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011467:Prostate / Q000033:anatomy & histology / Q000502:physiology; D012004:Rectal Neoplasms / Q000601:surgery; D012661:Semen / Q000378:metabolism*; D013094:Spermatozoa