Testis and epididymis
Germ cell tumors
Dermoid cyst

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

Revised: 6 June 2017, last major update December 2012

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

PubMed search: Dermoid cyst testis [title]

Cite this page: Dermoid cyst. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/testisdermoid.html. Accessed October 16th, 2018.
Definition / general
  • Rare form of benign testicular teratoma, characterized by pilosebaceous units arranged around predominantly unicystic lesion, often containing hair
  • Noncutaneous elements may be present but lack cytologic atypia seen in usual mature teratoma (Am J Surg Pathol 2001;25:788)
Microscopic (histologic) description
  • Organoid arrangement of pilosebaceous units around epidermal epithelium
  • Lipogranulatomous reaction in testis parenchyma due to leakage of sebaceous secretion
  • Other tissue types sometimes present
  • No intratubular germ cell neoplasia (IGCNU), no immature elements
Microscopic (histologic) images

Images hosted on other servers:

Epidermoid vs dermoid cyst vs usual teratoma