File:PMC4603206 usg-14060-f11.png

English: f11-usg-14060: A 64-year-old male patient with cubital tunnel syndrome.A. The elbow anteroposterior view shows severe osteoarthritis in the elbow joint. Note multiple spur changes and loose bodies in the medial side of the joint. B, C. Transverse sonograms at the level of the cubital tunnel show prominent enlargement of the ulnar nerve (arrows). The cross-sectional area of the ulnar nerve is 30.2 mm2. The ulnar nerve looks hypoechoic due to neural edema. The normal fascicular pattern is lost. D. The longitudinal sonogram of the ulnar nerve shows segmental enlargement and swelling at the level of the elbow joint. The left side of the picture shows the distal part of the upper extremity. E. An operative photograph of the same patient shows the prominently swollen ulnar nerve (arrows). Cubital tunnel release was performed in this patient.