Spine radiograph in a patient with mucopolysaccharidosis IV (MPS IV, Morquio syndrome)

Radiograph of the cervical spine in mucopolysaccharidosis IV (MPS IV, Morquio syndrome). The odontoid is severely hypoplastic (arrow), and there is anterior displacement of C1 on C2 (arrowheads).

Courtesy of Ed Wraith, MD.

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