Giant cell tumor of the posterior arch of the atlas.
D000293:Adolescent; D000328:Adult; D001270:Cervical Atlas / Q000000981:diagnostic imaging*; D005260:Female; D005870:Giant Cell Tumors / Q000000981:diagnostic imaging*; D006801:Humans; D011859:Radiography; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging*