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Fig. 2B 19-year-old woman with noncommunicating tear of triangular
fibrocartilage at ulnar insertion in right wrist due to fall off skateboard 5
months before examination. Arthroscopy showed communicating tear of triangular
fibrocartilage at this location. Conventional arthrogram of distal radioulnar
joint shows contrast agent pooling in triangular fibrocartilage defect
(arrowheads).