Intraosseous ganglion
Updates to Article Attributes
Body
was changed:
An intraosseous ganglion (plural: ganglia) is a benign subchondral radiolucent lesion without degenerative arthritis.
Epidemiology
Tends to occur in middle age.
Clinical presentation
Patients may have mild localised pain.
Pathology
They are uni-/multilocular cysts surrounded by a fibrous lining, containing gelatinous material.
Origin
- mucoid degeneration of intraosseous connective tissue perhaps due to trauma/ischemia
- penetration of juxtaosseous soft-tissue ganglion (=synovial herniation) into underlying bone (occasionally)
Location
Common locations are:
- epiphyses of long bones (medial malleolus, femoral head, proximal tibia, carpal bones)
- subarticular flat bone (acetabulum)
Radiographic features
Plain radiograph
Typically well-demarcated solitary lytic lesion, with a sclerotic margin. No communication with joint can be demonstrated.
MRI
- solitary, unilocular or multilocular 2
- usually sclerotic rim is present
Bone scan
Bone scans demonstrate increased radiotracer uptake (in 10%).
Differential diagnosis
- post-traumatic
/degenerative/degenerative cyst
See also
-</ul><h5>Bone scan</h5><p>Bone scans demonstrate increased radiotracer uptake (in 10%).</p><h4>Differential diagnosis</h4><ul><li>post-traumatic/degenerative cyst</li></ul><h4>See also</h4><ul><li><a href="/articles/ganglion-cyst">ganglion cysts</a></li></ul>- +</ul><h5>Bone scan</h5><p>Bone scans demonstrate increased radiotracer uptake (in 10%).</p><h4>Differential diagnosis</h4><ul><li>post-traumatic/<a title="Geode" href="/articles/geode">degenerative cyst</a>
- +</li></ul><h4>See also</h4><ul><li><a href="/articles/ganglion-cyst">ganglion cysts</a></li></ul>
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