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Table 2 Imaging manifestations of the 14 patients with spinal giant cell tumour of the tendon sheath (GCTTS)

From: Giant cell tumour of the tendon sheath of the spine: clinical features and imaging findings

Cases Segment Location CT findings MRI findings Enhancement SUVmax Size (mm)
Soft Tissue Mass Border Density Cortical bone Discontinuous Sclerotic margin T1WI signal T2WI signal
1 C5-7 Left vertebral plate, left part of vertebral body and spinous process (+) Well Heterogeneous (+) (+) Hypointense, with internal slight hyperintensity Mostly hypointense with internal hyperintensity 32.4 × 30.9 × 35.0
2 T9 (primary) Left vertebral arch, transverse process and left part of vertebral body (+) Ill Heterogeneous (+) (+) Mostly hypointense Mostly hypointense Obviously heterogeneous   65.6 × 33.1 × 61.4
  T11 (recurrent) Lesion unable to be clearly observed due to severe metal artefacts on CT and MRI images 5.1 13 × 8 × 7*
3 C4-5 Right transverse process and pedicle of vertebral arch of C4; vertebral body, right transverse process and spinous process of C5 (+) Ill Heterogeneous (+) (−) Isointense and hyperintense Mostly slightly hyperintense with internal hypointensity Obviously heterogeneous   47.8 × 46.1 × 43.4
4 C1-2 Anterior arch and left lateral mass of C1; left vertebral arch, transverse process and left part of vertebral body of C2 (+) Wel Homogeneous, isodense (+) (+) Isointense Hypointense   45.7 × 36.9 × 40.
5 C4-6 Most of vertebral body, bilateral transverse process and vertebral arch (+) Ill Homogeneous, isodense (+) (−) Isointense with internal hypointensity Mostly hypointense with internal hyperintensity 8.9 48.6 × 36.0 × 37.7
6 T1-2 Left vertebral arch, transverse process and articular process; left part of vertebral body (+) Well Homogeneous, isodense (−) (+) Isointense Isointense Obviously homogeneous 15.5 31.6 × 27.2 × 18.0
7 C5 Left lamina of vertebral arch (+) Well Heterogeneous (−) (−) Isointense Isointense Obviously homogeneous   17.6 × 12.4 × 9.0
8 C1-2 Left lateral mass, posterior arch of C1 and left vertebral arch, transverse process of C2 (+) Ill Homogeneous, isodense (+) (+) Hypointense Hypointense   66.4 × 52.5 × 51.1
9 T3 Right vertebral arch, transverse process and articular process (+) Well Homogeneous, isodense (−) (−) Isointense and hypointense Slightly hyperintense Obviously homogeneous   28.5 × 21.6 × 24.6
10 C1 Posterior arch (+) Well Heterogeneous (+) (+) Isointense Hypointense Moderately homogeneous   23.9 × 21.6 × 17.6
11 C4-5 Right transverse process, pedicle of vertebral arch and articular process (+) Wel Heterogeneous (+) (+) Hypointense Hypointense Obviously heterogeneous   31.1 × 19.0 × 17.6
12 C6 Right vertebral arch (+) Well Homogeneous, isodense (+) (−) Isointense Isointense   20.4 × 13.5 × 21.3
13 C6-7 Right transverse foramen, pedicle of vertebral arch and articular process (+) Well Homogeneous, isodense (−) (+) Isointense Hypointense Moderatelyhomogeneous 15.5 20.7 × 19.6 × 17.0
14 T8 Left costotransverse articulation (−) Well Homogeneous, isodense (+) (+) Isointensity Isointensity 15.3 11. × 10.4 × 15.7
  1. *The size of the lesion was measured on the high uptake region on PET/CT examination