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Fig. 1C 18-year-old man with lateral elbow pain for 4 months and
surgically proven unstable osteochondritis dissecans of capitellum. Sagittal
fat-suppressed T2-weighted fast spin-echo MR image of elbow shows
osteochondritis dissecans lesion (arrow) as large area of signal
abnormality with high-signal-intensity rim and linear bands of high and low
signal intensity centrally. Note marked irregularity of articular cartilage
overlying osteochondritis dissecans lesion (arrowhead).