Figure 3From: Unilateral isolated sphenoid sinusitis with contralateral abducens nerve palsy - A rare complication treated in a low-resource setting Coronal section of the posterior aspect of the sphenoid sinus showing its close proximity to important functional structures: the internal carotid artery, cavernous sinus, and oculomotor, trochlear, ophthalmic, abducens, and maxillary nerves [ 13 ]. Back to article page