(A)An arachnoid cyst in the left temporal pole is causing compression of the lateral orbital wall(black arrow). The left sphenoid sinus is well aerated, and the optic nerve canal passes through the sphenoid sinus cavity(white arrow). There is a slightly high signal intensity in the posterior part of the optic nerve on T2-weighted imaging(white arrowhead). (B) An arachnoid cyst in the left temporal pole is causing compression of the lateral orbital wall (black arrow).
(A) The arachnoid cyst in the left temporal pole is compressing the lateral orbital wall, causing partial absorption of the greater wing of the sphenoid bone. The superior orbital fissure is enlarged on the left side compared to the right(white arrow).(B)The left muscle cone at the orbital apex is compressed and narrowed(white arrow). The left sphenoid sinus is well aerated, and the optic nerve enters the sphenoid sinus cavity (white arrowhead).
1. 深圳市科技创新委员会课题基金 (GJHZ20190821113605296)。 This work was supported by the Shenzhen Science and
Technology Innovation Commission Project Fund.(GJHZ20190821113605296).
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