Photographs of ocular movement deficits of the left eye with various eye movements—directions of attempted gaze shown by closest arrow to images (panel a). CT of the orbit without contrast, seen in transverse (panel b) and coronal plane (panel c). Note left eye lenticular 2.8 × 1.2 × 2.9 cm soft-tissue mass (arrow), consistent with a subperiosteal abscess, compressing the superior-rectus and superior-oblique muscles, and complete opacification of numerous sinuses including the left ethmoid sinus (arrowhead).
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