Background: Thromboembolic events are a known complication of Inflammatory Bowel Disease (IBD) especially during disease relapse, more commonly in deep veins of extremities and lung, and rarely as Cerebral Sinovenous Thrombosis (CSVT).

Methods: We describe an 11 year, old male patient with 3 months history of Ulcerative Colitis (UC) who presented as pseudotumor cerebri due to superior sagittal sinus thrombosis during an acute exacerbation of his colitis, that was successfully treated with heparin and then warfarin.

Conclusions: In any known cases of UC presenting as acute severe headache, consider CSVT and request brain MRI and MRV to facilitate the diagnosis and early treatment.