Joints
Nonneoplastic disease
Cystic meniscus

Author: Vijay Shankar, M.D. (see Authors page)

Revised: 23 August 2017, last major update January 2013

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

PubMed Search: Cystic meniscus

Cite this page: Shankar, V. Cystic meniscus. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/jointscysticmeniscus.html. Accessed October 20th, 2017.
Definition / general
  • Lesion similar to ganglion but in menisci of knee
  • Either at lateral or medial joint margin (AJR Am J Roentgenol 2001;177:409)
  • Either confined to meniscus or extends beyond capsule
  • Almost always associated with meniscal tears; may be due to trauma
  • Cyst caused by simple extrusion of synovial fluid through meniscal tear
  • Usually pain and swelling
Case reports
Clinical images

Images hosted on other servers:

Arthroscopic finding

External aspect of cyst

Cyst resection

Resected cyst with medial meniscus

Microscopic (histologic) description
  • Cyst lined by synovial epithelium with nonspecific inflammation and focal hemorrhage