Fig. 2
Three-dimensional images based on magnetic resonance imaging of the right elbow. a Anterior image. b Oblique image. c Posterior image. The tumor is orange; the bone, humerus, radius, and ulna are white; and the nerve is yellow. The running course of the posterior interosseous nerve (arrow head) is changed at the distal corner of the tumor in contrast to the superficial branch of radial nerve (arrow)