Related Articles Bilateral Transverse Sinus Thrombosis Secondary to a Homozygous C677T MTHFR Gene Mutation. Genet Test. 2008 Jul 31; Authors: Kanaan ZM, Mahfouz R, Taher A, Sawaya RA We describe the case of a previously healthy young man who presented with headache, diplopia, nausea, vomiting, and bilateral papilledema. Magnetic resonance venography of the brain revealed thrombosis of the right transverse sinus. Blood tests showed elevated homocysteine levels, and coagulation studies revealed a homozygous C677T mutation and a heterozygous A1298C mutation of the methylenetetrahydrofolate reductase (MTHFR) gene. The patient had no other etiology for venous thrombosis. We recommend screening patients who present with sinus thrombosis for MTHFR gene mutations. PMID: 18666857 [PubMed - as supplied by publisher] ...
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