Quadriceps fat pad impingement syndrome
Chronic left knee pain. No history of trauma.
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The quadriceps (anterior suprapatella) fat pad is enlarged and shows heterogenous hyperintense on T2W and PDFS. Posterior suprapatella fat pad is slightly compressed however shows normal signal.
The quadriceps tendon is normal. The patella is also normal. Minimal knee joint fluid.
The imaging findings shows edematous changes with convex posterior surface of the quadriceps (anterior suprapatella) fat pad.
Quadriceps fat pad impingement syndrome is a rare cause of knee pain and maybe incidental finding.