Polyostotic fibrous dysplasia

Case contributed by Henry Knipe
Diagnosis certain


Follow-up from orthopedic clinic.

Patient Data

Age: 12 years
Gender: Female

Ill-defined expansile lesion of the mid tibial shaft without periosteal reaction. Internal ground glass matrix. 


Expansile lesions of both the first metacarpal and proximal phalanx. Internal matrix is somewhat ground glass. No periosteal reaction. 

Case Discussion

Fibrous dysplasia can be monostotic (~75%) or polyostotic (~25%), in the latter the tibia and the foot are common locations. 

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