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(a) Transverse scan posterior elbow. t—triceps tendon, T—triceps muscle, OF—olecranon fossa, *—synovial proliferation posterior joint recess and H—humerus. (b) Longitudinal scan posterior elbow. t—triceps tendon, T—triceps muscle, OF—olecranon fossa, *—synovial proliferation posterior joint recess and H—humeral trochlea. (c) Transverse view anterior elbow. B—brachialis muscle, Br—brachioradialis muscle, HC—humeral capitellum, ↓—radial nerve and *—anterior joint recess synovitis.
