Periodic lateralized epileptiform discharges in influenza B-associated encephalopathy

Intern Med. 2001 Aug;40(8):813-6. doi: 10.2169/internalmedicine.40.813.

Abstract

An 18-year-old woman presented with coma, hemicomvulsions, and transient periodic lateralized epileptiform discharges (PLEDs). Serological tests were positive for influenza B, and cerebrospinal fluid PCR for herpes simplex virus DNA was negative. Magnetic resonance imaging later showed abnormal signal intensity in the temporal lobe ipsilateral to the PLEDs. Influenza-associated encephalopathy may cause hemiconvulsions and PLEDs, and can mimic herpes simplex encephalitis.

Publication types

  • Case Reports

MeSH terms

  • Adolescent
  • Electroencephalography
  • Encephalitis, Viral / complications*
  • Encephalitis, Viral / diagnosis
  • Encephalitis, Viral / physiopathology
  • Encephalitis, Viral / virology
  • Epilepsy, Partial, Motor / physiopathology
  • Epilepsy, Partial, Motor / virology*
  • Epilepsy, Tonic-Clonic / physiopathology
  • Epilepsy, Tonic-Clonic / virology*
  • Female
  • Functional Laterality
  • Humans
  • Influenza B virus* / isolation & purification
  • Influenza, Human / complications*
  • Influenza, Human / diagnosis
  • Influenza, Human / virology
  • Periodicity
  • Tomography, X-Ray Computed