Retro-odontoid pseudotumor, or mass-like retro-odontoid soft tissue thickening, is an
uncommon but important imaging finding that may be associated with rheumatoid arthritis …

Background Retro-odontoid pseudotumor (RP) can be caused by several diseases,
especially rheumatoid arthritis, and is usually associated with the presence of atlantoaxial …

Purpose Retro-odontoid pseudotumor is common in elderly people and is a cause of
cervical myelopathy. The goal of the study was to investigate surgical procedures, outcomes …

Study Design. Case series study. Objective. The aim was to investigate the incidence of retro-
odontoid pseudotumor in patients with atlantoaxial instability (AAI) and evaluate …

Objective The preservation of nuchal musculature is essential for preventing axial pain and
cervical malalignment after laminoplasty. A few studies have examined the effect of …

Study Design Retrospective case-control study. Objective This study aimed to identify the
underlying pathologies of non-rheumatic retro-odontoid pseudotumors (NRPs), which would …

OBJECTIVE Increasing soft-tissue mass posterior to the odontoid process causes spinal
cord compression. Retro-odontoid pseudotumors are considered to be associated with …

Objectives Retro-odontoid pseudotumor (ROP), with no rheumatoid arthritis, atlantoaxial
instability, or other primary diseases, is defined as idiopathic retro-odontoid pseudotumor …

Background and Objectives: To date, imaging characterization of non-rheumatic retro-
odontoid pseudotumors (NRROPs) has been lacking; therefore, NRROPs have been …

Objective Hemodialysis has been reported to be associated with retro-odontoid
pseudotumor (ROP), but its clinical characteristics have not been well described. The …