PMC7656003_01
Radiograph anteroposterior and lateral view showing sclerotic and lytic lesion involving C2 vertebra.
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F1
T2 weighted MRI showing an expansile lesion involving C2 vertebra with cord compression.
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F2
The MR revealed an expansile lesion involving the C2 vertebral body; the tumor infiltrated the laminae, pedicles, transverse processes, and spinous process [Figure 2].
(a) Histopathology shows densely cellular tumor consisting of small round cells with clear cytoplasm. (b) Immunohistochemistry shows positivity for vimentin-clone V9 and CD99 MIC2-clone 12E7.
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F3
The final histopathology showed a densely cellular tumor consisting of small round cells with clear cytoplasm [Figure 3a]. The immunohistochemistry showed that the tumor was strong positivity for vimentin-clone V9 and CD99 MIC2- clone 12E7 [Figure 3b]; these findings were consistent with the diagnosis of Ewing's sarcoma.
One year post operative radiograph shows well maintained sagittal alignment with implant in situ.
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F4
One year later, he fully recovered neurological function, and radiographs confirmed stability of the surgical construct [Figure 4].