Bilateral occipital lobe hyperperfusion demonstrated by single photon emission computed tomography during seizure-related cortical blindness

J Neuroophthalmol. 2004 Mar;24(1):24-6. doi: 10.1097/00041327-200403000-00005.

Abstract

An 81-year-old woman with chronic dementia developed lethargy, confusion, binocular blindness, and episodic left-beating nystagmus. Diffusion magnetic resonance imaging (MRI) revealed high signal in the right occipital region suggesting recent ischemia. A concurrent electroencephalogram (EEG) showed a right occipital seizure focus that spread to the opposite occipital lobe. A single photon emission computed tomography (SPECT) performed during the seizure epoch showed bilateral occipital lobe hyperperfusion. This is the second report to document SPECT bi-occipital hyperperfusion in seizure-related cortical blindness.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Aged, 80 and over
  • Alzheimer Disease / complications
  • Blindness, Cortical / etiology*
  • Electroencephalography
  • Epilepsy / complications*
  • Epilepsy / diagnosis
  • Fatal Outcome
  • Female
  • Humans
  • Ischemia / diagnosis
  • Ischemia / diagnostic imaging*
  • Ischemia / etiology*
  • Magnetic Resonance Imaging
  • Nystagmus, Pathologic / complications
  • Occipital Lobe / blood supply*
  • Tomography, Emission-Computed, Single-Photon*