Anatomía microscópica de los conductos eyaculadores. Implicaciones clínicas en el cáncer de próstata

López, José I.

doi:10.1016/s1699-8855(07)70075-2

Cited by 2 publications

(5 citation statements)

References 22 publications

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“…However, in contrast to the findings of Aboul and Li, Nguyen et al () observed that the ejaculatory ducts diverged inferolaterally at the seminal colliculus. A similar divergence of the terminal parts of the ducts was noted in a Spanish (López, ) and the United States (McMahon, ) study. A subsequent Sri Lankan study, using axial sections of cadaveric prostates to develop a three‐dimensional model of the ejaculatory ducts, confirmed the above findings (Malalasekera et al, ).…”

Section: Resultssupporting

confidence: 79%

“…However, in contrast to the findings of Aboul and Li, Nguyen et al (1996) observed that the ejaculatory ducts diverged inferolaterally at the seminal colliculus. A similar divergence of the terminal parts of the ducts was noted in a Spanish (López, 2007) (Malalasekera et al, 2018). Li et al (2019) defined three segments of the ejaculatory duct.…”

Section: Resultssupporting

confidence: 70%

“…The relationship between the duct openings and the apex of the seminal colliculus was described as an isosceles triangle, the apex of the seminal colliculus lying at its vertex. In contrast to this configuration, several studies found that the ejaculatory ducts can lie on either side of the seminal colliculus (McMahon, 1938;Nguyen et al, 1996), either side of the prostatic utricle (López, 2007;McMahon, 1938), or within the prostatic utricle (Banner & Hassler, 1978;McMahon, 1938). Oh et al (2009) further examined the relationship between the opening of the ejaculatory ducts and the prostatic utricle in the vicinity of the seminal colliculus, finding that the prostatic utricle opened midway between the ejaculatory ducts in most cases (35%).…”

Section: Resultsmentioning

confidence: 99%

“…Electron microscopy further demonstrated that the surface epithelial cells had microvilli and other features of secretory cells (Cossu et al, 1983). The middle layer, which was composed of collagen, had a distinct circular and longitudinal fiber arrangement (López & Angulo, 2013) with similarly arranged fibroblasts (López, 2007) depositing collagen in the extracellular matrix. This layer was richly innervated and vascularized (López & Angulo, 2013).…”

Section: Ultrastructure Of the Ejaculatory Ductsmentioning

confidence: 99%

“…This layer was richly innervated and vascularized (López & Angulo, 2013). The fibrous coat encased the ejaculatory ducts separately at their origin, but they fused and formed a common covering distally as the ducts approached the seminal colliculus (López, 2007). This collagen coat was reinforced by a sheath of smooth muscles wrapped around it.…”

Section: Ultrastructure Of the Ejaculatory Ductsmentioning

confidence: 99%

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Morphology of ejaculatory ducts: A systematic review

et al. 2020

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The morphology of human ejaculatory ducts has not been well established. The objective of this study was to describe macroscopic and microscopic anatomy of ejaculatory ducts. We conducted a systematic review using MEDLINE, Scopus, PubMed, and Cochrane databases. Search terms were: "ejaculatory ducts," "seminal colliculus," "prostatic utricle," "anatomy," "histology," "radiology," and "embryology." We only included studies assessing adult (>18 years) humans published before November 1, 2019. We excluded studies describing pathological ducts and case reports. Independent authors extracted data using predefined criteria. Fourteen studies were included in the qualitative synthesis. Usually, the ejaculatory ducts entered the prostate by piercing the central part of its base. Most studies identified an anteromedial curve of the ducts at the outset within the prostate, their subsequent course being a straight path towards the seminal colliculus, their terminal parts diverging immediately before joining the prostatic urethra. However, the morphology of the terminal part of the ducts was inconsistent. The mean length of the ducts ranged from 1.4 to 2.2 cm. In conclusion, the luminal diameter gradually decreased as the ducts traveled towards the seminal colliculus. Ejaculatory ducts angulate anteromedially at their onset within the prostate and travel straight towards the seminal colliculus. Their terminal parts diverge immediately before joining the prostatic urethra. However, the reported dimensions of the ducts differ among studies.

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Section: Resultssupporting

confidence: 79%