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Insights into Imaging
Fig. 16 | Insights into Imaging

Fig. 16

From: Osteoid osteoma: the great mimicker

Fig. 16

Osteoid osteoma mimicking bone marrow contusion. Male, 16 years old, presenting with right elbow and arm pain for 2 days after falling during physical activity at school. First, the MRI T1 (a) and T2 FS (b, c) findings were interpreted to indicate contusion bone marrow edema (asterisks) without a fracture. However, the pain persisted for more than 3 months. Follow-up CT (d, e) and MRI (f, g) scans revealed small subchondral OO with a lytic nonmineralized nidus (arrows) and enhancement (dotted arrows) on the T1 FS GD MRI scan (f, g)

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