Abstract
We report computed tomography (CT) features in a case of segmental thrombosis of the superior sagittal sinus. On the initial cranial CT scan, both frontal cortices showed focal areas of slightly increased attenuation. The lesions were isointense on magnetic resonance (MR) images no matter what pulse sequence was used, except on fluid-attenuated inversion recovery images, which showed curvilinear sulcal hyperintensity. On postcontrast T1-weighted images, curvilinearly enhancing structures were apparent in both frontal cortical sulci. No lesion appeared on follow-up CT or in MR images. We speculated that the areas of slightly increased attenuation in the cortices represented blood congestion in the cortical veins, venules and capillaries without serum leakage. Cranial CT images should be carefully interpreted to avoid overlooking subtle lesions.
Similar content being viewed by others
References
Rao KC, Knipp HC, Wagner EJ (1981) Computed tomographic findings in cerebral sinus and venous thrombosis. Radiology 140:391–398
Chiras J, Bousser MG, Meder JF, Koussa A, Bories J (1985) CT in cerebral thrombophlebitis. Neuroradiology 27:145–154
Renowden S (2004) Cerebral venous sinus thrombosis. Eur Radiol 14:215–226
Yoshikawa T, Abe O, Tsuchiya K, Okubo T, Tobe K, Masumoto T, Hayashi N, Mori H, Yamada H, Aoki S, Ohtomo K (2002) Diffusion-weighted magnetic resonance imaging of dural sinus thrombosis. Neuroradiology 44:481–488
Bakac G, Wardlaw JM (1997) Problems in the diagnosis of intracranial venous infarction. Neuroradiology 39:566–570
Forbes KP, Pipe JG, Heiserman JE (2001) Evidence for cytotoxic edema in the pathogenesis of cerebral venous infarction. Am J Neuroradiol 22:450–455
Sarma D, Farb RI, Mikulis DJ, terBrugge KG (2004) Reversal of restricted diffusion in cerebral venous thrombosis: case report. Neuroradiology 46:118–121
Yuh WTC, Simonson TM, Wang AM, Koci TM, Tali ET, Fisher DJ, Simon JH, Jinkins JR, Tsai F (1994) Venous sinus occlusive disease: MR findings. Am J Neuroradiol 15:309–316
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Uchino, A., Eriguchi, M., Sawada, A. et al. Gyral abnormalities in the early stage of superior sagittal sinus thrombosis. Eur Radiol 15, 1701–1704 (2005). https://doi.org/10.1007/s00330-004-2440-z
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00330-004-2440-z