Testis and epididymis
Infectious testicular lesions

Author: Sean Williamson, M.D. (see Authors page)

Revised: 6 April 2017, last major update December 2012

Copyright: (c) 2002-2017, PathologyOutlines.com, Inc.

PubMed Search: testicular Mumps

Cite this page: Mumps. PathologyOutlines.com website. http://pathologyoutlines.com/topic/testismumps.html. Accessed April 28th, 2017.
Definition / general
  • Testicular infections rare in infected children (prepubertal) but occur in 15 - 40% of postpubertal men one week after parotiditis
  • Usually unilateral (bilateral in 15 - 30%); epididymitis is also common (85%) and often precedes orchitis
  • 1/3 of infected postpubertal men develop testicular atrophy, 2 - 10% become infertile
  • Incidence increasing, due to reduced use of vaccine (BJU Int 2010;105:1060)
Microscopic (histologic) images

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Mumps orchitis