Testis & epididymis
Nonneoplastic lesions

Topic Completed: 1 December 2012

Minor changes: 27 March 2019

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PubMed Search: Malakoplakia [title] testis

Sean R. Williamson, M.D.
Page views in 2019: 653
Page views in 2020 to date: 447
Cite this page: Williamson S. Malakoplakia. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/testismalakoplakia.html. Accessed August 11th, 2020.
Definition / general
  • Affects testis alone or testis and epididymis
  • Culture often grows presence of coliforms
Gross description
  • Testis is enlarged, tanish yellowy brown
  • Associated with abscesses and thrombosed blood vessels
Microscopic (histologic) description
  • Tubular atrophy, sheets of histiocytes with Michaelis-Gutmann bodies (intracellular and extracellular round structures containing iron and calcium)
Microscopic (histologic) images

Images hosted on other servers:

Tubular outlines appear preserved

Tubular architecture is destroyed

Sertoli cells replaced

Malakoplakia of the testis

Virtual slides

Images hosted on other servers:

Malakoplakia of testis

Electron microscopy description
  • Bacteria within phagolysosomes of histiocytes
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