Paget disease of the patella

Case contributed by Henry Knipe
Diagnosis almost certain

Presentation

Post fall. Knee pain ?fracture.

Patient Data

Age: 80 years
Gender: Male
x-ray

Abnormal patella with a diffuse mixed sclerosis and lytic appearance. No expansion, cortical destruction or periosteal reaction. 

Case Discussion

This patient had a bone scan 10 years prior (images no longer available) with a diagnosis of polyostotic Paget disease, with activity at this site as well as the humerus and ribs being made. 

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