OLECRANON BURSITIS

 

Olecranon bursitis refers to inflammation of the olecranon bursa. The olecranon bursa is a subcutaneous space lined with a synovial membrane that secretes fluid to provide smooth and almost frictionless motion between the skin, the subcutaneous tissues, and the olecranon. Because of its superficial location, it is a common site for injury, inflammation, and infection. Repeated traumatization of the elbows at work led to common terms for different forms of occupational bursitis such as “student's elbow” or “miner's elbow”.

Approximately one third of the cases of olecranon bursitis are septic. Many patients with septic olecranon bursitis lack a history of trauma or a visible injury over the olecranon.

Lateral radiograph of the elbow reveals soft tissue swelling superficial to the olecranon. Ultrasound may show a fluid collection in the olecranon bursa, features of synovial proliferation and/or hyperemia.

CT will show fluid density at the subcutaneous tissue superficial to the elbow. Bursal fluid collection in MRI has the following features: hypointense-T1, mainly hyperintense-T2, and enhancement of bursal margins in post contrast imaging.

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2020-11-27 22:12
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