MRI Findings of Osteochondritis Dissecans of the Capitellum with Surgical Correlation
Richard Kijowski and
Arthur A. De Smet
Department of Radiology, University of Wisconsin Hospital, Clinical
Science Center, E3/311, 600 Highland Ave., Madison, WI 53792-3252.
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Fig. 1A —18-year-old man with lateral elbow pain for 4 months and
surgically proven unstable osteochondritis dissecans of capitellum.
Anteroposterior radiograph of elbow shows osteochondritis dissecans lesion
(arrow) as focal well-defined area of subchondral radiolucency.
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Fig. 1B —18-year-old man with lateral elbow pain for 4 months and
surgically proven unstable osteochondritis dissecans of capitellum. Sagittal
T1-weighted MR image of elbow shows lesion (arrow) as large area of
signal abnormality with low-signal-intensity rim and heterogeneous
intermediate signal intensity and low signal intensity centrally.
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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).
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Fig. 2A —17-year-old male baseball pitcher with lateral elbow pain for
2 years and surgically proven unstable osteochondritis dissecans of
capitellum. Sagittal CT reformatted image of elbow shows osteochondritis
dissecans lesion (arrow) as focal well-defined area of subchondral
radiolucency with central calcifications.
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Fig. 2B —17-year-old male baseball pitcher with lateral elbow pain for
2 years and surgically proven unstable osteochondritis dissecans of
capitellum. Sagittal T1-weighted MR image of elbow shows osteochondritis
dissecans lesion (arrow) as large area of signal abnormality with
low-signal-intensity rim and heterogeneous intermediate and low signal
intensity centrally.
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Fig. 2C —17-year-old male baseball pitcher with lateral elbow pain for
2 years 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 heterogeneous
intermediate and low signal intensity centrally. Note mild irregularity of
articular cartilage overlying osteochondritis dissecans lesion
(arrowhead).
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Fig. 3A —16-year-old male baseball pitcher with lateral elbow pain for
5 years and surgically proven stable osteochondritis dissecans of capitellum.
Intraarticular loose body was found at surgery. Anteroposterior radiograph of
elbow shows osteochondritis dissecans lesion (arrow) as focal
well-defined area of subchondral radiolucency.
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Fig. 3B —16-year-old male baseball pitcher with lateral elbow pain for
5 years and surgically proven stable osteochondritis dissecans of capitellum.
Intraarticular loose body was found at surgery. Coronal T1-weighted spin-echo
MR image of elbow shows osteochondritis dissecans lesion (arrow) as
large area of signal abnormality with low-signal-intensity rim and
heterogeneous intermediate and low signal intensity centrally.
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Fig. 3C —16-year-old male baseball pitcher with lateral elbow pain for
5 years and surgically proven stable osteochondritis dissecans of capitellum.
Intraarticular loose body was found at surgery. Coronal (C) and
sagittal (D) fat-suppressed T2-weighted fast spin-echo MR images of
elbow show subtle high-signal-intensity areas within osteochondritis dissecans
lesion (arrow) that otherwise is not distinguishable from adjacent
marrow. No peripheral signal abnormality is present.
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Fig. 3D —16-year-old male baseball pitcher with lateral elbow pain for
5 years and surgically proven stable osteochondritis dissecans of capitellum.
Intraarticular loose body was found at surgery. Coronal (C) and
sagittal (D) fat-suppressed T2-weighted fast spin-echo MR images of
elbow show subtle high-signal-intensity areas within osteochondritis dissecans
lesion (arrow) that otherwise is not distinguishable from adjacent
marrow. No peripheral signal abnormality is present.
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Copyright © 2005 by the American Roentgen Ray Society.
