Nonneoplastic disease
Cutaneous metaplastic synovial cyst

Topic Completed: 1 February 2013

Minor changes: 26 September 2019

Copyright: 2002-2019,, Inc.

PubMed Search: Cutaneous metaplastic synovial cyst

Related topics: Synovial cyst

Vijay Shankar, M.D.
Page views in 2019: 1,002
Page views in 2020 to date: 521
Cite this page: Shankar V. Cutaneous metaplastic synovial cyst. website. Accessed May 24th, 2020.
Definition / general
  • Lined by metaplastic synovial tissue
  • May be due to local trauma
Case reports
  • Surgical excision; recurrence is rare
Clinical images

Images hosted on other servers:

Solitary, well demarcated 3 cm mass

Cystic lesion filled with gelatinous material

Microscopic (histologic) description
  • Cystic structure with papillary projections lined by epithelium resembling synovium
Microscopic (histologic) images

Images hosted on other servers:

Numerous villous-like structures

Villous structures
lined by membrane
of varying cellularity

Vimentin+ CD34- CD68-

Back to top