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Joints
Joint tumors
Synovial hemangioma

Reviewer: Vijay Shankar, M.D. (see Reviewers page)
Revised: 15 June 2013, last major update June 2013
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.

General
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Sites
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Xray images
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MRI of knee of 32 year old man

Case reports
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Gross description
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Gross images
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Various images

Heavily pigmented soft tissue mass

Micro description
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Micro images
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Figure 1

Figure 2

Figure 3


Fig 1: Well-circumscribed lesion composed of a fibrotic stroma and thin walled capillary vessels, with associated thrombi formation. (H&E 20X).
Fig 2: A closer view of the lesion showing the presence of organized thrombi in the lumen of some vessels and a flat layer of benign endothelial cells (H&E 100X).
Fig 3: CD-31 special stain demonstrating strong reactivity of the lining endothelium (100X).

Hip

Hyperplastic synovium

Dilated vascular spaces

Cavernous blood vessels

Differential diagnosis
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End of Joints > Joint tumors > Synovial hemangioma


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