Figure 2From: Cavernous sinus thrombosis caused by contralateral sphenoid sinusitis: a case report Contrast-enhanced CT. Contrast-enhanced CT showed enhancement and dilation of left cavernous sinus (arrowhead). Sphenoid sinus occupied the low density area. The right sphenoid sinus extended posteriorly to the left sinus and was in contact with both cavernous sinuses (arrow).Back to article page