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Explore the abnormal findings in a 60-year-old male with knee stiffness, achiness, and swelling. Discover the DDX of a bowed tibial shaft with a smoky lesion and calcific densities in the joints. Could it be Fibrous Dysplasia or CPPD?
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CASE OF THE WEEK 98This 60 year old male has stiff and achy knees with occasional swelling.
Answers Findings: The left tibial shaft is slightly bowed and expanded, with a smoky lesion containing light septations (soap-bubbly). If you have excellent eyes and a thorough search pattern, you will have seen calcific densities within the femoro-tibial joints (especially on the left). DDX: -Fibrous Dysplasia (painless lesion) -CPPD (Calcium Pyrophosphate Deposition Disease). (The cause of the knee pain and swelling.)