PMC5804360_01
(a) Preoperative radiography of the wrist showing nidus (arrow). (b) Postoperative radiography of wrist.
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Initial radiographic films (Figure 1) were read as unremarkable; however, given high clinical suspicion of osteoid osteoma, an MRI was obtained which demonstrated a circular hypointense lesion along the dorsal aspect of the trapezium (Figure 2) suspicious for an osteoid osteoma.
Magnetic resonance imaging demonstrating circular hypointense lesion (arrow).
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Initial radiographic films (Figure 1) were read as unremarkable; however, given high clinical suspicion of osteoid osteoma, an MRI was obtained which demonstrated a circular hypointense lesion along the dorsal aspect of the trapezium (Figure 2) suspicious for an osteoid osteoma.
Computed tomography showing sclerotic nidus surrounded by radiolucent halo (arrow).
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CT was ordered to further characterize the lesion. CT imaging demonstrated the same defect yet slightly larger (Figure 3).
Photomicrograph of the osteoid osteoma. The tumor is composed of haphazardly interconnected trabeculae of osteoid and woven bone (hematoxylin and eosin; original magnification, x5).
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Histopathology confirmed the diagnosis (Figure 4), and intraoperative fluoroscopy confirmed complete removal of the lesion (Figure 5).
(a) Gross images of the explanted tumor. (b) Intraoperative photograph of the surgical site after tumor removal.
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fig5
Histopathology confirmed the diagnosis (Figure 4), and intraoperative fluoroscopy confirmed complete removal of the lesion (Figure 5).