RT Journal Article SR Electronic T1 Cerebral venous thrombosis associated with oligodendroglioma and pregnancy JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 277 OP 279 VO 14 IS 3 A1 Fatehi, Farzad A1 Basiri, Keivan A1 Saadatnia, Mohammad A1 Koleini, Navid YR 2009 UL http://nsj.org.sa/content/14/3/277.abstract AB Until now, cerebral venous sinus thrombosis (CVST) was principally an autopsy diagnosis; however, with the introduction of MRI and angiography, as well as enhanced clinical attentiveness, it is now reliably diagnosed during life. Herein, we describe a case of CVST accompanied by oligodendroglioma and pregnancy. In our patient, the following factors contributed to the formation of CVST: First, the pregnancy state, which is a known risk factor for developing venous thrombosis; and secondly, the oligodendroglioma could have changed the architecture of adjacent sinus (right lateral sinus) and provocation of the development of clot in the sinus.