Abducens Nerve Paralysis Induced by a Primary Solitary Sphenoid Sinus Mucocele with Broad Osseous Thinning at the Cranial Base

Figure 1

Noncontrast computed tomography imaging of the paranasal cavity at the initial diagnosis. (a) Axial and (b) coronal views. We confirmed the presence of soft tissue contrast, suggesting a retention cyst at the rear sphenoid sinus, with thinning at the sella turcica and left internal carotid artery and elimination of the clivus (white arrows).