Optic nervehead swelling is most frequently caused by ocular or intracranial lesions. The case presented here demonstrates that the spinal subarachnoid space must also be considered as a potential site for a lesion causing optic nervehead swelling. A 56-year-old man is presented with an intraspinal lumbar paraganglioma associated with increased… (More)
The case is described of a 15-year-old girl with papilledema and visual obscurations caused by a rare lesion, Masson's vegetant intravascular hemangioendothelioma, within the venous sinus at the torcular herophili. This lesion impeded cranial venous outflow, leading to intracranial hypertension.