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Testis and epididymis
Nonneoplastic testicular lesions
Hydrocele

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

Revised: 7 April 2017, last major update December 2012

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PubMed Search: Hematocele [title] testicular

Table of Contents
Definition / general | Gross images | Microscopic (histologic) description | Differential diagnosis
Cite this page: Hydrocele. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/testishydrocele.html. Accessed July 15th, 2017.
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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