Superficial infrapatellar bursitis
MRI
characteristics of cysts and “cyst-like” lesions in and around the knee: what the radiologist needs to know. Deep infrapatellar bursitis. The sagittal fat saturated proton density weighted image demonstrates a small fluid collection in the deep infrapatellar bursa (arrow), between the distal patellar tendon and the tibia
Infrapatellar bursitis (or clergyman's knee) occurs with inflammation of bursae around the insertion of the distal patellar tendon. The inflamed bursa may be:
- superficial/subcutaneous: anterior to the distal patellar tendon
- deep: posterior to the distal patellar tendon, in the region of the infrapatellar fat pad (Hoffa's fat pad).
Radiographic features
Inflammation of an infrapatellar bursa is well detected on either targeted musculoskeletal ultrasound or on MRI.
Related pathology
Infrapatellar bursitis may be a component of Osgood-Schlatter disease.
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Assoziationen und Differentialdiagnosen zu Bursitis infrapatellaris: