O-070 Ultrasound evaluation of seminal vesicle size and the effect of ejaculatory duct cysts

Hoekstra, T.H; Smith, Claire; Jaffe, Tracy A.; Hu, Jiaqi; Scherefred, L; Khan, Muqtaza Manzoor; Lipshultz, Larry I.

doi:10.1016/s0015-0282(97)90702-0

Cited by 3 publications

(2 citation statements)

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“…Using gross anatomy, Aboul‐Azm () reported that the mean length of the seminal vesicles was 50 ± 0.9 mm and the mean thickness 12 ± 0.2 mm. Hoekstra et al () used transrectal ultrasonography and reported that the mean width of the seminal vesicles was 9.7 mm on the right side and 9.3 mm on the left. Using CT, Silverman et al () reported that the mean length of the seminal vesicles was 31 mm and the mean width 15 mm.…”

Section: Discussionmentioning

confidence: 99%

Anatomical study of the seminal vesicle system for transurethral seminal vesiculoscopy

Liu

et al. 2018

Clinical Anatomy

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Because of a general lack of knowledge regarding the precise anatomy of the seminal vesicle system, efforts to use transurethral seminal vesiculoscopy (TSV) are currently constrained. We investigated 26 normal adult male specimens. Contrast medium was injected into the seminal vesicle system in 18 specimens and the openings of the ejaculatory ducts were examined with an operating microscope. India ink was injected into the urethra in four specimens to investigate the function of the ejaculatory duct valve. Another four specimens were examined histologically to identify the anatomical relationships of the seminal vesicle system. We found that the openings of the ejaculatory ducts were covered by the ejaculatory duct valve, which could be classified into two types and acted as a one-way valve. The apex of the seminal colliculus together with the right and left openings of the ejaculatory ducts formed a shape resembling an isosceles triangle. This could be used to locate the openings of the ejaculatory ducts during TSV. The ejaculatory ducts can be classified into two types according to their course. During surgery, efforts must be made to protect the ejaculatory duct valve. During inspection or surgery, the second segment and the angles of the ejaculatory ducts, particularly in Type I b and Type II cases, require particular attention.

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Section: Discussionmentioning

confidence: 99%

Anatomical study of the seminal vesicle system for transurethral seminal vesiculoscopy

Liu

et al. 2018

Clinical Anatomy

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“…US is commonly used as initial choice of evaluation, whereas MRI is used for more complex cases. The normal mean seminal vesicle diameter is 1.5 ± 0.4 cm (by CT) (20,21) or 0.9± 0.3 cm (by US) (22), and about 3.1 ± 0.5 cm in length (by CT) (21).…”

Section: Seminal Vesiclesmentioning

confidence: 94%

Seminal Vesicles in Autosomal Dominant Polycystic Kidney Disease

Kim

Blumenfeld

Prince

2015

Polycystic Kidney Disease

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Extra-renal manifestations of autosomal dominant polycystic kidney disease (ADPKD) have been known to involve male reproductive organs, including cysts in testis, epididymis, seminal vesicles, and prostate. The reported prevalence of seminal vesicle cysts in patients with ADPKD varies widely, from 6% by computed tomography (CT) to 21%-60% by transrectal ultrasonography. However, seminal vesicles in ADPKD that are dilated, with a diameter greater than 10 mm by magnetic resonance imaging (MRI), are "megavesicles". This is a separate entity from seminal vesicle cysts and has a prevalence of 23% in ADPKD patients, but is not known to occur in patients without ADPKD. The basis of these cystic changes and megavesicles has not been established, but may be explained by an imbalance between cell growth/proliferation inhibitors and stimulators analogous to mechanisms in renal tubular epithelial cells, hepatic ducts, and in the vasculature. Male infertility has been associated with ADPKD, although a causal role of seminal tract abnormalities has not been established. In this chapter, the anatomic abnormalities of seminal vesicles in ADPKD and their clinical significance will be discussed.

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A comparison of seminal vesicle size on CT between autosomal dominant polycystic kidney disease (ADPKD) patients and normal subjects

2010

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Background: Extrarenal manifestations are common in autosomal dominant polycystic kidney disease (ADPKD). Although seminal vesicles can also be involved in patients with ADP-KD, little is known about the size differences of the seminal vesicles between ADPKD patients and normal subjects. Purpose: To determine whether the size of seminal vesicles in ADPKD patients is larger than that in normal subjects with the use of three-dimensional (3D) CT. Material and Methods: Using a retrospective case-control study design, we reviewed the fi ndings of 696 male patients with an age range of 20 -69 years who underwent contrast enhanced multi-detector computed tomography (MDCT) imaging of the kidney in our institution from August 2007 to July 2008. A total of 68 male patients with ADPKD comprised the study group. Another 68 age-matched non-ADPKD male patients comprised the control group. The size of bilateral seminal vesicles was assessed by measurement of the short dimension on axial, coronal, and sagittal images by the use of a picture archiving and communication system (PACS). Results: The mean width of seminal vesicles in ADPKD patients was 1.70 Ϯ 0.40 cm (axial images), 1.86 Ϯ 0.45 cm (coronal), and 1.59 Ϯ 0.39 cm (sagittal). For control group subjects, the mean width was 1.53 Ϯ 0.29 cm (axial), 1.68 Ϯ 0.43 cm (coronal), and 1.48 Ϯ 0.31 cm (sagittal). The mean size differences between the ADPKD and control groups for the measured widths on axial and coronal images were statistically signifi cant ( P ϭ 0.01 and P ϭ 0.02, respectively). The width as measured on axial images showed a decrease with age in the control group subjects (linear trend, P ϭ 0.005), but no signifi cant decrease was noted in ADPKD patients. Conclusion:The seminal vesicles were demonstrated to be larger in ADPKD patients as compared with normal subjects as determined with the use of 3D CT.

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O-070 Ultrasound evaluation of seminal vesicle size and the effect of ejaculatory duct cysts

Cited by 3 publications

References 0 publications

Anatomical study of the seminal vesicle system for transurethral seminal vesiculoscopy

Anatomical study of the seminal vesicle system for transurethral seminal vesiculoscopy

Seminal Vesicles in Autosomal Dominant Polycystic Kidney Disease

A comparison of seminal vesicle size on CT between autosomal dominant polycystic kidney disease (ADPKD) patients and normal subjects

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