Soft tissue
Uncertain differentiation
Juxta-articular myxoma


Topic Completed: 1 May 2013

Minor changes: 15 September 2020

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PubMed Search: Juxta-articular myxoma

Vijay Shankar, M.D.
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Page views in 2020 to date: 1,007
Cite this page: Shankar V. Juxta-articular myxoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/jointsjuxtaarticularmyxoma.html. Accessed October 24th, 2020.
Definition / general
Epidemiology
  • Median age 43 years, range 16 - 83 years
  • 72% male
Sites
  • Knee (88%), also shoulder, elbow, ankle, hip
Case reports
Clinical images

Images hosted on other servers:

Arthroscopic image
of lesion within
suprapatellar pouch

Gross description
  • Myxoid, mucoid or slimy mass with pale white to yellow color
Gross images

Images hosted on other servers:

Glassy appearance

Microscopic (histologic) description
  • Loosely arranged spindle cells in hypovascular myxoid matrix; variable cystic spaces can be seen
Microscopic (histologic) images

Images hosted on other servers:

Myxoid stroma and spindle cells

Bland myxoid neoplasm
without mesenchymal atypia
or hypercellularity

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