Inflamation of the bursal cavity superficial to the<unk> 
Majority of cases are not infectious, but inflammation can be from infection (septic<unk> 
Also known as "student's elbow" or "baker's elbow"
Often caused by repeated minor trauma from external pressure to elbow
There is controversy regarding initial diagnosis and treatment
Olecranon bursitis 
Distal humerus fracture
Calcaneal bursitis
Radial head fracture
Hip bursitis
Essex-Lopresti fracture
Pes anserine bursitis
Capitellum fracture