Cavernous sinus thrombosis

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Thrombosis of the cavernous sinus is one of the important cerebral venous sinus (sinovenous) thrombosis (CSVT) syndromes that can be life threatening. Classically they are misdiagnosed, and this includes because specific imaging techniques may be required. Normal cranial head CT is possible. However venous (CT) angiography or cranial magnetic resonance imaging will be diagnostic. It is an important differential diagnosis to consider with orbital cellultis and headache presentations in those predisposed to venous thrombosis such as females on the oral contraceptive. Septic cavernous sinus thrombosis had a mortality close to 100% before the antibiotic era[1][2].