Testis and epididymis
Nonneoplastic lesions
Hydrocele



Topic Completed: 1 December 2012

Revised: 27 March 2019

Copyright: 2002-2018, PathologyOutlines.com, Inc.

PubMed Search: Hematocele [title] testicular

Sean R. Williamson, M.D.
Page views in 2018: 9,452
Page views in 2019 to date: 7,058
Cite this page: Williamson S. Hydrocele. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/testishydrocele.html. Accessed August 25th, 2019.
Definition / general
  • Accumulation of clear serous fluid between visceral and parietal layers of tunica vaginalis; associated with trauma and epididymitis
  • Diagnose by transillumination
  • Note: take sufficient sections to rule out malignant mesothelioma
Gross images

Images hosted on other servers:

Large hydrocele

Microscopic (histologic) description
  • Loose connective tissue with mesothelial lining
  • If long standing, may have chronic inflammatory infiltrate, fibrosis, squamous metaplasia
Differential diagnosis
  • Spermatocele: epithelial lining, often with cilia, lumen contains spermatozoa
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