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Crowned dens syndrome and cervical interspinous bursitis mimicking acute meningitis.

A 57-year-old woman presented to the emergency unit with neck pain of acute onset, stiffness, and fever. On admission, she was conscious. Physical examination revealed severe cervical rigidity with positive Kernig sign, but no focal neurological defects were present. A palpable and painful cervical mass was observed at the low cervical tract. Laboratory findings showed that C-reactive protein and erythrocyte sedimentation