C2 Lesion in An Adolescent Resembling Chordoma : Histopathological Confirmation of Rheumatoid Pannus Following Two-Stage Decompression : A Case Report. AANHS-J [Internet]. 2025 Apr. 30 [cited 2026 Feb. 4];7(01):1-6. Available from: https://idjpcr.usu.ac.id/aanhsj/article/view/20438