An intraosseous ganglion is a benign sub chondral radiolucent lesion without degenerative arthritis.
Demographics and clinical presentation
Tends to occur in middle age. Patients may have mild localized pain.
They are uni- / multilocular cyst surrounded by fibrous lining, containing gelatinous material
- mucoid degeneration of intraosseous connective tissue perhaps due to trauma / ischemia
- penetration of juxtaosseous soft-tissue ganglion (= synovial herniation) into underlying bone (occasionally)
Common locations are
epiphyses of long bones (medial malleolus, femoral head, proximal tibia, carpal bones) / subarticular flat bone (acetabulum)
Typically well-demarcated solitary lytic lesion, with a sclerotic margin. No communication with joint can be demonstrated.
Bone scans demonstrate increased radiotracer uptake (in 10%).
- post-traumatic / degenerative cyst
Synonyms & Alternative Spellings
|Synonyms or Alternative Spelling||Include in Listings?|
|Intraosseous ganglion cyst||✗|
|Intraosseous ganglion cysts||✗|