Seizure-induced transient hippocampal abnormalities on MR: Correlation with positron emission tomography and electroencephalography

J. E. Cox, V. P. Mathews, C. C. Santos, A. D. Elster

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

We report transient focal abnormalities on MR in a patient having frequent electrographic seizures that were not obvious clinically. Marked mass effect (confirmed with volumetric studies) and abnormal T2 signal intensity in the right hippocampal region correlated with electroencephalographic ictal activity and with increased positron-emitting radiotracer uptake in the medial temporal lobe. The follow-up MR 2 months later, after electroencephalography findings normalized, revealed no hippocampal abnormalities.

Original languageEnglish
Pages (from-to)1736-1738
Number of pages3
JournalAmerican Journal of Neuroradiology
Volume16
Issue number8
StatePublished - Jan 1 1995

Keywords

  • Brain, magnetic resonance
  • Hippocampus
  • Seizures

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