Cavernous sinus: The cavernous sinus is a

The cavernous sinus is a large, paired venous sinus located within the cranial cavity. It is part of the dural venous sinus system, responsible for... The cavernous sinuses are venous drainage areas for the brain and eyes and are pathways for vital nerves. Learn why cavernous sinus anatomy is so important. Cavernous sinus thrombosis The most common cause is spread of infection from the dangerous area of face (squeezing a pimple or boil). The signs and symptoms (due to involvement of structures closely related to cavernous sinus ) are: Severe pain in the eye & forehead due to involvement of opthalamic nerve. Papilledema (edema of optic disc): due to engorgement of central vein of retina. Exophthalmos : due to engorgement of ophthalmic veins. Dilated and fixed pupil: due to involvement of ... The cavernous sinus is part of the brain’s dural venous sinus and contains multiple neuro-vasculatures. It is situated bilaterally to the sella turcica and extends from the superior orbital fissure anteriorly to the petrous part of the temporal bone posteriorly, and is about 1 cm wide and 2 cm long. The venous blood that flows to the cavernous sinus is from the superior and anterior ophthalmic veins, superficial middle cerebral vein, and sphenoparietal sinus. The communication between the ...