The exploration of surgical outcomes in patients with giant cell tumor of the tendon sheath in spine: An epidemiological, radiological, and follow-up investigation

•Spinal GCTTS mainly involves the posterior bone elements with the onset around 30–40 years old.•Soft tissue masses centering on the facet joint with osteolytic bony destruction.•A few cases presented as the intramuscular lesions without bone destruction.•T2-weighted dark signals, homogeneous or heterogeneous enhancement.•Gross-total resection is an effective means for treating spinal GCTTS.