title: Retro-odontoid ghost-pseudo tumours in atlanto-axial instability caused by rheumatoid arthritis.
authors.forename: B
authors.initials: B
authors.lastname: Kendall
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications*; D001268:Atlanto-Axial Joint / Q000473:pathology*; D003560:Cysts / Q000473:pathology; D005122:Exudates and Transudates; D006801:Humans; D007593:Joint Instability / Q000473:pathology*; D009809:Odontoid Process / Q000473:pathology*