Tenosynovial giant cell tumor of the upper cervical spine arising from the posterior atlanto-occipital membrane: a case report.
A tenosynovial giant cell tumor is a benign proliferative disease, mostly arising from the synovial membrane of tendon sheaths, bursae, and joints. Axial skeleton involvement is very rare, but it is often found in the cervical spine. Spinal tenosynovial giant cell tumors often arise at the facet joints; a completely extra-articular spinal tenosynovial giant cell tumor is rare. We report an extremely rare case of tenosynovial giant cell tumor in the upper cervical spine that extended from the posterior atlanto-occipital membrane rather than the facet joint. Herein, the clinical and radiological findings will be reviewed to better our understanding of the characteristics of spinal tenosynovial giant cell tumors, and to help improve their diagnosis despite their non-typical locations of origin.
['Kim|Yun Ji|YJ|', 'Hong|Ji Hyun|JH|http://orcid.org/0000-0003-1039-654X', 'Park|Jong Hwa|JH|', 'Cho|Seong Jin|SJ|']
D002574:Cervical Vertebrae D000070779:Giant Cell Tumor of Tendon Sheath D005870:Giant Cell Tumors D006801:Humans D009333:Neck D013583:Synovial Membrane D021801:Zygapophyseal Joint
Tenosynovial giant cell tumor Spine