A 25-years-old right-handed female presented with a one-week history of right sided-elbow pain and numbness, with clicking at the anteromedial aspect of the elbow on forearm movement (Figs. 1, 2, 3).

Fig. 1
figure 1

Ultrasound image in transverse axis via anterior approach, with elbow in supination

Fig. 2
figure 2

Ultrasound image in transverse axis via anterior approach, with elbow in pronation

Fig. 3
figure 3

Axial T2 fat-suppressed MRI image of the elbow