title: Bilateral optic disc swelling as a presenting sign of superior sagittal sinus thrombosis.
abstract: The case of a 59-year-old Caucasian man who presented with a 6-week history of intermittent blurring of vision and diplopia is reported. Fundoscopy revealed asymmetrical, bilateral optic disc swelling with peripapillary haemorrhages. An initial CT scan and D-dimer level were reported as normal. A subsequent MRI revealed a recanalising superior sagittal sinus thrombosis. Cerebral venous sinus thrombosis is a rare and potentially fatal condition. The author suggests that it should be part of the differential diagnosis of bilateral optic disc swelling and that a normal unenhanced CT scan and D-dimer would not rule out this potentially devastating condition.
authors.affiliation: Department of Ophthalmology, Calderdale and Huddersfield NHS Trust, Huddersfield Royal Infirmary, Huddersfield, UK. grant.pakter@cht.nhs.uk
authors.forename: Grant Jason
authors.initials: GJ
authors.lastname: Pakter
mesh_terms: D003937:Diagnosis, Differential; D004172:Diplopia / Q000209:etiology; D005338:Fibrin Fibrinogen Degradation Products / Q000032:analysis; D005654:Fundus Oculi; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010211:Papilledema / Q000209:etiology*; D020225:Sagittal Sinus Thrombosis / Q000150:complications* / Q000175:diagnosis
chemical_list: D005338:Fibrin Fibrinogen Degradation Products; C036309:fibrin fragment D