title: [Blood vessels and nerves surrounding the seminal vesicles: A clinical anatomic study].
abstract: OBJECTIVE
  To investigate the precise locations of the blood vessels and nerves surrounding the seminal vesicles (SV) in men and provide some anatomical evidence for SV-related minimally invasive surgery.
  
  
  METHODS
  We observed the courses and distribution of the blood vessels and nerves surrounding SVs and obtained the data for positioning the SV neuroplexes in 20 male pelvises.
  
  
  RESULTS
  One branch of the neuroplexes was distributed to the SVs bilaterally with the neurovascular bundles, (2.85 ± 0.18) cm from the median sulcus of the prostate (MSP), while another branch ran through the Denonvillier fascia behind the SV, (0.81 ± 0.06) cm from the MSP. The arterial SVs (ASV) originated from the inferior vesical artery and fell into 4 types, 55% going directly to the SVs as one branch, 15% running between the SV and the ampulla of the deferent duct as another branch, 25% downward as 2 branches to the SV and between the SV and the ampulla of the deferent duct respectively, and 5% as the other ASVs. The shortest distance from the ASV through the prostatic neuroplexus to the posterior SV was (1.08 ± 0.09) cm.
  
  
  CONCLUSIONS
  In SV resection, neuroplexus injury can be reduced with a bilateral distance of < 2.85 cm and a posterior distance of < 0.81 cm from the MSP, and so can bleeding by vascular ligation between the SV and the ampulla of the deferent duct.
authors.forename: Xiu-ping
authors.initials: XP
authors.lastname: Zhang
authors.forename: Zhao-yi
authors.initials: ZY
authors.lastname: Lin
authors.forename: Shu-xiong
authors.initials: SX
authors.lastname: Zeng
authors.forename: Xiao-dan
authors.initials: XD
authors.lastname: Guo
authors.forename: Xiang-qun
authors.initials: XQ
authors.lastname: Yang
mesh_terms: D001706:Biopsy; D006801:Humans; D008297:Male; D011467:Prostate / Q000098:blood supply / Q000294:innervation; D012669:Seminal Vesicles / Q000098:blood supply* / Q000294:innervation*; D014649:Vas Deferens / Q000098:blood supply / Q000294:innervation