Presentation
Left knee pain and swelling post-fall.
Patient Data
Age: 50 years
Gender: Female
From the case:
Patellar enthesopathy
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Patellar tooth sign at the insertion of the quadriceps tendon is in keeping with patellar enthesopathy.
Small knee joint effusion. Normal alignment. No fracture.
Case Discussion
A case of patellar tooth sign arising at the insertion site of the quadriceps tendon, consistent with the development of a degenerative enthesophyte of the patella.