Summary: | The development of cerebral venous thrombosis (CVT) as a secondary complication of Crohn's disease (CD) seems to be rare, but it is generally accepted that the disease activity of CD contributes to the establishment of a hypercoagulable state. Here, we describe a case of CVT that developed outside the active phase of CD. A 17-year-old male visited the emergency room because of a sudden onset of right-sided weakness and right-sided hypesthesia. He had been diagnosed with CD 1 year before and was on a maintenance regimen of mesalazine and azathioprine. He did not exhibit any symptoms indicating a CD flare-up (bloody stools, abdominal pain, complications, or weight loss). A brain MRI scan revealed an acute infarction of the left frontal cortex and a cortical subarachnoid hemorrhage. Additionally, a magnetic resonance venography revealed a segmental filling defect in the superior sagittal sinus and also the non-visualizability of some bilateral cortical veins. The characteristics of the present case suggest that the risk of CVT is most likely related to CD per se rather than disease activity associated with CD.
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