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AJNR - American Journal of Neuroradiology

Published ahead of print on August 7, 2008
doi: 10.3174/ajnr.A1246

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Frequency and Topographic Distribution of Brain Lesions in Pediatric Cerebral Venous Thrombosis

M. Teksam^a,b, M. Moharir^c, G. deVeber^c and M. Shroff^b

^a Department of Radiology, Fatih University Medical School, Ankara, Turkey
^b Department of Diagnostic Imaging, The Hospital For Sick Children, Toronto, Ontario, Canada
^c Department of Neurology, The Hospital For Sick Children, Toronto, Ontario, Canada

View larger version (81K): [in this window] [in a new window]   Fig 1. A 3-year-old boy is presented with a headache after severe gastroenteritis. A, Axial T1-weighted and (B) axial FLAIR images demonstrate edematous swollen thalami bilaterally. (C) Maximum intensity projection 2D time of flight MRV image reveals nonvisualization of the internal cerebral veins and straight sinus. Filling defects consistent with clots are also noted in the posterior superior sagittal sinus.

View larger version (34K): [in this window] [in a new window]   Fig 2. An 8-day-old term neonate presented with a seizure. (A) Axial and (B) coronal CT venography MPR images demonstrate a thrombus in the right transverse sinus (arrows). (C) Unenhanced axial CT image shows focal hypoattenuated lesion consistent with edema in the left parietal lobe (arrows). D, Sagittal CT venography maximum intensity projection image reveals patency of superior sagittal sinus without thrombosis.

View larger version (24K): [in this window] [in a new window]   Fig 3. Diagrammatic representation of the cerebral venous territories.7 Transverse diagrams at the level of the basal ganglia (A) and (B) at the level of the corona radiata, coronal diagrams at the level of the basal ganglia (C) and (D) at the level of thalami. SSS: Territory of the superior sagittal sinus; CS: Territory of the cavernous sinus; TS: Territory of the transverse sinus; GVS: Territory of the Galen vein system.