Joint tumors
Synovial hemangioma

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

Revised: 9 July 2018, last major update June 2013

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

PubMed Search: Synovial hemangioma [title]

Cite this page: Shankar, V. Synovial hemangioma. website. Accessed August 15th, 2018.
Definition / general
  • Uncommon; usually young adults, more common in males
  • Presents as nontraumatic joint swelling with recurrent effusions
  • Knee, elbow, finger
Radiology images

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MRI of knee of 32 year old man

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