UW Radiology Teaching File Quick Cases Case 15 Answers Fibrous dysplasia, left proximal femur Findings Lucent lesion in medullary space of proximal left femur.
Lesion has sclerotic margin with no discernable matrix.
No periosteal reaction is noted. AP view of the left proximal femur. Axial CT scans through left proximal femur. Coronally reformatted CT through left proximal femur. The findings listed above are all consistent with fibrous dysplasia, but none of them are terribly specific for it.