Presentation
Trauma.
Patient Data
Age: 30 years
Gender: Male
From the case:
Radial head fracture
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Fracture with mild displacement is present in the articular surface of the radial head which is seen in the external oblique view.
There is also an anterior fat pad sign in the lateral view suggesting hemarthrosis.
Case Discussion
Radial head fracture is a relatively common injury, especially in adults, although they can be occult on routine radiographs. The elbow external oblique view is an additional projection of the elbow often used to better demonstrate the radial head free from superposition.