Brain image manifestation in the patient with cavernous sinus occlusion

Radionuclide findings in a case of cavernous sinus occlusion by an intracavernous aneurysm are described. A brain image obtained 10 minutes after injection of 99Tc pertechnetate shows diminished activity in the area of the right cavernous sinus and increased activity in the area of the right sylvian veins; these are attributed to abnormal venous blood flow and may serve as a sign of cavernous sinus occlusion.