Testis & epididymis

Nonneoplastic lesions

Vasitis nodosa

Topic Completed: 1 March 2012

Minor changes: 9 September 2020

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PubMed Search: vasitis nodosa

Rafael Jimenez, M.D.
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Cite this page: Jimenez R. Vasitis nodosa. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/testisvasitisnodosa.html. Accessed December 6th, 2021.
Definition / general
  • Granulomatous condition of vas deferens that resembles spermatic granuloma of epididymis
  • Usually post vasectomy or herniorrhaphy
  • Occasionally associated with recanalization
Microscopic (histologic) description
  • Proliferating ductules and dilated tubules containing spermatozoa in wall of vas deferens
  • Also associated with small bundles of hyperplastic smooth muscle
  • Vas deferens may show irregular thickening
  • Ductules may connect with vas deferens (like diverticula or salpingitis isthmica nodosa but with inflammation and less smooth muscle hypertrophy)
  • May see perineural or vascular invasion by proliferating ductules
Microscopic (histologic) images

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Vasitis nodosa

Differential diagnosis
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