PMC4868927_01
CT of the skull and cervical spine reveals multiple bony lytic lesions (arrows): a sagittal, left mandible, b coronal, cervical vertebra and occipital condyles, and c axial, clivus.
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F1
The patient's diagnosis of GSD was made at the age of 5 after an episode of left jaw swelling, for which imaging revealed lytic lesions of the skull base, clivus, left mandible, and first cervical vertebra (fig. 1).
The patient presented with limited abduction of the right eye with right lateral gaze (a), causing a worsening horizontal diplopia and a right esotropia in primary gaze (b). No diplopia was induced with left lateral gaze (c).
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F2
On examination, he presented with right eye esotropia with horizontal diplopia in primary gaze and with limited abduction of the right eye with right lateral gaze (fig. 2), which produced a worsening of the horizontal diplopia.