Right femoral aneurysmal bone cyst

Case contributed by Amr Farouk
Diagnosis certain


Right upper thigh pain.

Patient Data

Age: 17-year-old
Gender: Male

Right femoral shaft upper diaphyseal sharply defined, expansile osteolytic lesion, with thin peripheral margins showing multilocular appearance eliciting isointense signal on T1, alternating isointense to high signals on T2 & STIR WIs, with fluid-fluid levels. It measures 2.1 x 6.5 cm along its maximal axial & craniocaudal dimensions. No MR evidence of cortical disruption or associated soft tissue components.

Case Discussion

Right upper femoral shaft expansile osteolytic lesion showing fluid/fluid levels with no associated soft tissue component representing an aneurysmal bone cyst.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

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

 Thank you for updating your details.