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Triangular fibrocartilage (TFC) and radioulnar ligaments on isotropic 3-dimensional (3D) coronal fat suppressed (FS) proton density (PD)-weighted images. (a) The dorsal radioulnar ligament (arrowhead), (b) The central disc (red arrow), and (c) The volar radioulnar ligament (dotted arrow). The ulnomeniscus homologue (yellow arrow) merges from the tip of the ulnar styloid process, and inserts to the ulnar side of the triquetrum and lunate. L, lunate; T, triquetrum; R, radius; U, ulna.
