Septic thrombosis of cavernous sinus extended to the ipsilateral internal jugular vein and transversal sinus with favorable outcome: Clinical and radiological features of a Lemierre syndrome.

An 86-year-old patient was hospitalized for fever and left acute orbital syndrome (red eye with moderate visual impairment, chemosis, ophthalmoplegia without proptosis, or any fundus involvement). CT scan showed superior ophthalmic vein and cavernous sinus enlargement complicating ipsilateral sphenoidal sinusitis. Magnetic resonance imaging (MRI) demonstrated the left cavernous sinus thrombosis extended to the ipsilateral jugular vein and transversal sinus (Lemierre syndrome). Intravenous broad-spectrum antibiotics and curative anticoagulation were prescribed. Blood cultures allowed the identification of Streptococcus intermedius and Staphylococcus warneri species. Evolution was favorable and the patient was discharged 3 weeks after. Antibiotics and anticoagulation were carried out for a total duration of 4 and 12 weeks, respectively. Lemierre syndrome is a potentially life-threatening emergency rarely encountered; thus, ophthalmologists should be cognizant of clinical and radiological features. Broad-spectrum antibiotics are the mainstay of treatment. Curative anticoagulation may be added if no blood coagulation disorder nor bleeding on neuroimaging has been identified.