Related Experiment Video
Updated: Aug 14, 2026

Clinical Application of 24 G Cannula Needle and 3-0 Polypropylene Suture in Vas Deferens Exploration
Published on: February 10, 2023
Vas deferens endoscopy (vasoscopy): a new diagnostic tool?
Luca Carmignani1, Emanuele Montanari, Franco Gadda
1Urology Unit, Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, Milan, Italy. luca.carmignani@unimi.it
Purpose:
To assess whether an experimental endoscopic study of the vasa deferentia is feasible.
Patients And Methods:
Endoscopic study of the seminal tracts was carried out during three vasectomies performed prior to open prostatectomy. A flexible endoscope, 0.56 mm in diameter, with a depth of field of 5 mm and a 3000 fiberoptic light source was used for the procedure.
Results:
Endoscopy was possible for the inguinoscrotal segment of the vas deferens. The curvature at the opening of the internal inguinal ring proved impassable.
Conclusions:
Endoscopy of the vas deferens is possible with a 0.56-mm flexible endoscope, but because of the extreme curvature of the vas at the inguinal ring, the complete vas cannot be evaluated in an antegrade manner.
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