Fig. 3

Giant cell tumor in the T2 vertebra. a Axial CT, b reformatted sagittal plane image, c sagittal plane T1-weighted image, d sagittal plane T2-weighted image, e axial T2-weighted image, and f post-enhanced sagittal and T1-weighted image. a The lesion involved the bilateral lamina and the spinous process with an ill-defined margin. b T2 vertebral body collapse and lesion invasion into the anteroposterior T3 vertebra. c–e MRI showing multiple cystic components and fluid–fluid levels that compressed the dural sac. f The solid component showed significant enhancement on post-enhanced image. Photomicrograph (100× magnification) demonstrating (g) a multinuclear giant cell and (h, arrow) an aneurysmal bone cyst component showing cyst-like changes, intracavitary bleeding, and no endothelial cells in the wall