Vasitis nodosa is a complication experienced in approximately 66% of men who undergo vasectomy^[1]. It is a benign nodular thickening of the vas deferens, in which small off-shoots proliferate, infiltrating surrounding tissue.^[2] It can be mistaken for low-grade adenocarcinoma by pathologists,^[3] and is implicated in late vasectomy failure.^[2]

[edit] References

1. ^ Taxy JB, Marshall FF, Erlichman RJ (December 1981). "Vasectomy: subclinical pathologic changes". Am. J. Surg. Pathol. 5 (8): 767–72. PMID 7337163. 
2. ^ ^{a b} Hirschowitz L, Rode J, Guillebaud J, Bounds W, Moss E (April 1988). "Vasitis nodosa and associated clinical findings". J. Clin. Pathol. 41 (4): 419–23. doi:10.1136/jcp.41.4.419. PMID 3366928. PMC 1141468. http://jcp.bmj.com/cgi/pmidlookup?view=long&pmid=3366928. 
3. ^ Deshpande RB, Deshpande J, Mali BN, Kinare SG (April 1985). "Vasitis nodosa (a report of 7 cases)". J Postgrad Med 31 (2): 105–8. PMID 4057111. http://www.jpgmonline.com/article.asp?issn=0022-3859;year=1985;volume=31;issue=2;spage=105;epage=8;aulast=Deshpande. 

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