Testis and epididymis
Nonneoplastic testicular lesions
Hydrocele

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

Revised: 7 April 2017, last major update December 2012

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

PubMed Search: Hematocele [title] testicular

Cite this page: Hydrocele. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/testishydrocele.html. Accessed June 26th, 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