Vasitis nodosa

Vasitis nodosa is a complication experienced in approximately 66% of men who undergo vasectomycite journal |author=Taxy JB, Marshall FF, Erlichman RJ |title=Vasectomy: subclinical pathologic changes |journal=Am. J. Surg. Pathol. |volume=5 |issue=8 |pages=767–72 |year=1981 |month=December |pmid=7337163 |doi= |url=] . It is a benign nodular thickening of the vas deferens, in which small off-shoots proliferate, infiltrating surrounding tissue.cite journal |author=Hirschowitz L, Rode J, Guillebaud J, Bounds W, Moss E |title=Vasitis nodosa and associated clinical findings |journal=J. Clin. Pathol. |volume=41 |issue=4 |pages=419–23 |year=1988 |month=April |pmid=3366928 |pmc=1141468 |doi= |url=http://jcp.bmj.com/cgi/pmidlookup?view=long&pmid=3366928] It can be mistaken for low-grade adenocarcinoma by pathologists,cite journal |author=Deshpande RB, Deshpande J, Mali BN, Kinare SG |title=Vasitis nodosa (a report of 7 cases) |journal=J Postgrad Med |volume=31 |issue=2 |pages=105–8 |year=1985 |month=April |pmid=4057111 |doi= |url= http://www.jpgmonline.com/article.asp?issn=0022-3859;year=1985;volume=31;issue=2;spage=105;epage=8;aulast=Deshpande ] and is implicated in late vasectomy failure.

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