Giant arachnoid granulation in a patient with benign intracranial hypertension

Eur Radiol. 2008 Oct;18(10):2329-32. doi: 10.1007/s00330-008-0985-y. Epub 2008 May 6.


We report magnetic resonance (MR), computed tomography (CT) and angiographic imaging of an unusual giant arachnoid granulation in the superior sagittal sinus in a man with headache and vertigo. Intrasinus pressure measurements revealed a significant pressure gradient across the lesion. MR imaging is useful to identify giant arachnoid granulation and dural sinus thrombosis, whereas dural sinus pressure measurement in certain cases of giant arachnoid granulations can be used to evaluate the lesion as the cause of the patient's symptoms.

Publication types

  • Case Reports

MeSH terms

  • Arachnoid / abnormalities*
  • Arachnoid / diagnostic imaging
  • Arachnoid / pathology*
  • Humans
  • Intracranial Hypertension / complications*
  • Intracranial Hypertension / diagnosis*
  • Magnetic Resonance Imaging
  • Male
  • Middle Aged
  • Phlebography