Subchondral cyst (geode) of the femoral head

Case contributed by Dr Roberto Schubert

Presentation

Right hip pain on weight bearing.

Patient Data

Age: 65
Gender: Female
Modality: X-ray

Large cyst in the pressure zone of the femoral head. Signs of osteoarthritis.

Modality: CT

Depression of the subchondral lamina covering the cysts. More small subchondral cysts in the acetabulum.

Case Discussion

Subchondral cysts in the superior outer and middle third of the femoral head (pressure zone) may arise from bone contusion and synovial intrusion or osteoclastic resorption of necrotic trabeculae following avascular necrosis 1.

PlayAdd to Share
Case
Full screen case
Case with hidden diagnosis
Full screen case with hidden diagnosis

Case Information

rID: 18670
Diagnostic certainty: Almost Certain
System: Musculoskeletal
Inclusion in quiz mode: Included

Updating… Please wait.
Loadinganimation

Alert_accept

Error Unable to process the form. Check for errors and try again.

Alert_accept Thank you for updating your details.