Soft tissue



Synovial hemangioma

Topic Completed: 1 June 2013

Minor changes: 20 January 2021

Copyright: 2002-2021,, Inc.

PubMed Search: Synovial hemangioma [title]

Vijay Shankar, M.D.
Page views in 2020: 1,808
Page views in 2021 to date: 1,741
Cite this page: Shankar V. Synovial hemangioma. website. Accessed October 16th, 2021.
Definition / general
  • Uncommon; usually young adults, more common in males
  • Presents as nontraumatic joint swelling with recurrent effusions
  • Knee, elbow, finger
Case reports
Gross description
  • Tumor usually confined to intra-articular synovium, may be in adjacent bursa
Gross images

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Heavily pigmented soft tissue mass

Microscopic (histologic) description
  • Resembles either cavernous hemangioma, lobular capillary hemangioma, arteriovenous hemangioma or venous hemangioma
Microscopic (histologic) images

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Hyperplastic synovium

Dilated vascular spaces

Cavernous blood vessels

Differential diagnosis
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