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Keywords:

  • transverse sinus;
  • thrombosis;
  • hydrocephalus;
  • pseudotumor;
  • headache

We report on a 32-year-old woman who presented with headache of a 10-day duration, due to acute hydrocephalus. This was a result of a tumefactive lesion of the posterior fossa, which was later proven to be a cerebellar venous infarct caused by unilateral transverse sinus thrombosis. Cerebral dural sinus thrombosis should be considered in the differential diagnosis of new onset of headache.