Aneurysmal bone cyst

Case contributed by Henry Knipe
Diagnosis almost certain


Hip pain.

Patient Data

Age: 7 years
Gender: Male

Expansile lucent lesion of the left proximal metadiaphysis. Appears multicystic. 


Intramedullary lesion of the left proximal femoral metadiaphysis with multiple fluid-fluid levels. 

Case Discussion

Classic appearance on x-ray and MRI of an aneurysmal bone cyst, which was later resected and confirmed.

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