Bilateral snapping triceps syndrome: A case report

Figure 2 Pre-operative transverse dynamic ultrasonography of the patient. A: In extension of the elbow, the ulnar nerve and medial head of the triceps are located posterior to the medial epicondyle; B: With flexion of the elbow by 100 degrees, the ulnar nerve and medial head of the triceps are dislocated anteriorly over the medial epicondyle. ME: Medial epicondyle, dotted circle: Ulnar nerve, dashed circle: Medial head of the triceps.