AP and lateral radiographs of the normal elbow and anatomic landmarks

(A) Anteroposterior (AP) radiograph of a normal elbow of a child.
(B) Normal lateral radiograph. The radial head and neck are seen on both AP and lateral views of the elbow. The olecranon process of the ulna is best seen on the lateral view. On the lateral radiograph, the radial head is superimposed over the coronoid process of the ulna.