Testis & paratestis

Nonneoplastic lesions


Last author update: 1 December 2012
Last staff update: 9 September 2020

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PubMed Search: Malakoplakia [title] testis

Sean R. Williamson, M.D.
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Cite this page: Williamson S. Malakoplakia. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/testismalakoplakia.html. Accessed June 1st, 2023.
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)
Virtual slides

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Malakoplakia of testis

Electron microscopy description
  • Bacteria within phagolysosomes of histiocytes
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