Prepatellar bursitis

Case contributed by Maulik S Patel


Right knee anterior swelling for the last few weeks. No trauma.

Patient Data

Age: 65 yrs
Gender: Male

There is a reduction of medial and lateral femorotibial compartment space. There are marginal osteophytes from the peri-articular surface of the femur, tibia, and patella. There is no bone lesion/ periosteal reaction.

There is pre-patellar soft tissue swelling. There is no suprapatellar effusion. Hoffa's fat pad is normal.


There is fluid collection anterior to the patella with few septa and fat nodules. It measures about 40 x 40 x 15 mm. There is no internal vascularity. There is increased peri-focal vascularity. The patellar anterior cortex is intact. The patellar tendon is normal. There is no superficial or deep intra-patellar bursitis. There is no suprapatellar recess effusion.

Case Discussion

Findings suggest prepatellar bursitis with changes of degenerative joint disease of the femorotibial compartment.

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