Journal of Andrology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Freund, M. J.
Right arrow Articles by Oliveira, N.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Freund, M. J.
Right arrow Articles by Oliveira, N.

Journal of Andrology, Vol 10, Issue 2 120-132, Copyright © 1989 by The American Society of Andrology

JOURNAL ARTICLE

Microrecanalization after vasectomy in man

M. J. Freund, J. E. Weidmann, M. Goldstein, J. Marmar, R. Santulli and N. Oliveira
Research Division University of Medicine and Dentistry of New Jersey School of Osteopathic Medicine, Camden 08103.

Previously spermatozoa in the semen of vasectomized men were reported in 62 of 63 specimens from 24 men 2 to 31 years postvasectomy (Freund and Couture, 1982). A morphologic basis and term, "microrecanalization," was proposed for this observation. Serial sections (5 mu at 200-mu intervals) of 40 specimens removed at vasovasostomy from 20 men (2 to 14 years postvasectomy) were examined and microcanals (small epithelial-lined channels) were demonstrated in 27 specimens from 18 men. In nine of the 27 specimens, spermatozoa or sperm heads were found within the microcanals. Microcanals occurred in smooth muscle, connective tissue and scar tissue, in each segment, testicular, central and abdominal, in the presence or absence of the vas deferens. Microcanal continuity was traced for 200 to 1140 microns by computerized image analysis. Microrecanalization is characterized by the absence of inflammation or sperm extravasation and is histologically distinct from vasitis nodes or sperm granuloma. Microrecanalization provides morphologic and physiologic bases for the protection of the testis and maintenance of spermatogenesis in man after vasectomy.


This article has been cited by other articles:


Home page
 ReproductionHome page
M M. Aruldhas, S Subramanian, P Sekhar, G C. Hasan, P Govindarajulu, and M A Akbarsha
Microcanalization in the epididymis to overcome ductal obstruction caused by chronic exposure to chromium - a study in the mature bonnet monkey (Macaca radiata Geoffroy)
Reproduction, July 1, 2004; 128(1): 127 - 137.
[Abstract] [Full Text] [PDF]

Home page
 J AndrolHome page
P. T. K. Chan and P. N. Schlegel
Inflammatory Conditions of the Male Excurrent Ductal System. Part II.
J Androl, July 1, 2002; 23(4): 461 - 469.
[Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1989 by The American Society of Andrology.