Adventitious bursitis over interlocking screws (thigh)

Case contributed by Maulik S Patel
Diagnosis certain

Presentation

Complaining of pain involving the proximal third of the right thigh on the lateral side for the last few months. The patient had a right femoral fracture for which intramedullary nail fixation was done about 9 years ago.

Patient Data

Age: 25 years
Gender: Female

There are two well-defined, anechoic encapsulated lesions in the lateral region of the proximal thigh. They measure about 20 x 12 x 6 mm and 6 x 6 x 3 mm. Deep to each cystic lesion, there is a reverberation artifact caused by femur intramedullary locking screw heads. There is no lesion abutting the distal femur screw head. There is no effusion in the right hip or knee joint.

Case Discussion

A young female presented with recurrent pain in the right thigh for the last few months. She had the right femur fracture fixation years back. Ultrasound shows adventitious bursitis over femur lock nail screw heads. The site of bursitis correlates with the site of pain pointed by the patient.

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