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Insights into Imaging
Fig. 5 | Insights into Imaging

Fig. 5

From: Osteoid osteoma: the great mimicker

Fig. 5

Osteoid osteoma mimicking synovitis on the elbow. Female, 20 years old, with elbow pain and edema for 4 months. Ultrasound in anterior sagittal view (a) at the coronoid fossa level shows joint effusion (arrow). MRI T1 (b) and T2FS (c, d) show bone marrow edema (dotted arrows) and synovitis (dashed arrows). Further investigation with a CT scan (e, f) revealed a mineralized nidus (curved arrow) in the cancellous bone of the medial humeral condyle

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