Testis & paratestis

Nonneoplastic lesions

Hydrocele



Last author update: 1 December 2012
Last staff update: 22 November 2022 (update in progress)

Copyright: 2002-2022, PathologyOutlines.com, Inc.

PubMed Search: Hematocele [title] testicular

Sean R. Williamson, M.D.
Page views in 2021: 13,803
Page views in 2022 to date: 15,873
Cite this page: Williamson S. Hydrocele. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/testishydrocele.html. Accessed December 6th, 2022.
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
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
Back to top
Image 01 Image 02