Figure 1From: Unusual presentation of giant cell tumor originating from a facet joint of the thoracic spine in a child: a case report and review of the literature Preoperative sagittal magnetic resonance imaging. a. Preoperative sagittal T1-weighted magnetic resonance imaging of the dorsal spine showing extradural mass in posterior aspect of dorsal canal approximately 1.0 × 1.4 × 4.0cm in size along T4 to T7 levels with hypointense signal. b. Preoperative sagittal T2-weighted (T2W) magnetic resonance imaging showing extradural mass with intermediate intense signal. c. Preoperative sagittal post-contrast T2W showed intense homogeneity with significant enhancement.Back to article page