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157 Possible Causes for 'Eye of the Tiger' Sign on MRI, Generalized Polyspikes, Jerk-Locked Premyoclonus Spikes

  • Benign Adult Familial Myoclonic Epilepsy

    T2 weighted brain MRI shows an ”eye of the tigersign corresponding to pallidal hypointensity with a high signal center.[neuroweb.us] We randomly selected 10 generalized spike/polyspike and wave complexes (GSW) for each BAFME patient and measured the duration of them.[ncbi.nlm.nih.gov] […] cortical spikes detected by the jerk-locked back-averaging) ( Ikeda et al., 1990 ).[academic.oup.com]

  • Generalized Clonic or Tonic-Clonic Seizures

    […] spike-and-wave, or generalized polyspike-and-wave complexes.[jstage.jst.go.jp] premyoclonus spikes Hand tremor Neuronal loss in central nervous system Cutaneous photosensitivity Hyperreflexia Heterogeneous Weight loss Dystonia Splenomegaly Thrombocytopenia[mendelian.co] EEG: Usually normal background, with generalized spike and wave or generalised polyspike and wave.[pennsw.com.au]

    Missing: 'Eye of the Tiger' Sign on MRI
  • Juvenile Myoclonic Epilepsy

    Generalized tonic-clonic seizures, photosensitivity and generalized polyspike-wave discharges provoked by eye closure are features of both epileptic syndromes.[ncbi.nlm.nih.gov] Electroencephalograms during these episodes showed almost continuous generalized polyspike-waves in both patients.[ncbi.nlm.nih.gov] All had generalized spike and wave on the interictal electroencephalogram, and 86% of them also had generalized polyspike and wave discharges.[ncbi.nlm.nih.gov]

    Missing: 'Eye of the Tiger' Sign on MRI Jerk-Locked Premyoclonus Spikes
  • Epilepsy

    Generalized polyspike-slow wave in EEG was common to see in myoclonic seizure and can help to make the classification.[ncbi.nlm.nih.gov] […] slowing MRI-normal C-VI-7 16 yrs 9 mths 10 yrs GTCS, abs, MJ, FS 9 mths Mild – 6 yrs: generalized slowing 15 yrs: generalized polyspike wave MRI-normal C-VI-8 12 yrs 6 mths[brain.oxfordjournals.org] Electroencephalogram is consistently abnormal, showing findings such as background slowing, multifocal and generalized epileptiform discharges and polyspikes.[ncbi.nlm.nih.gov]

    Missing: 'Eye of the Tiger' Sign on MRI Jerk-Locked Premyoclonus Spikes
  • Myoclonic-Astatic Epilepsy

    Analysis of the ictal EEGs showed that all attacks corresponded to the generalized spike or polyspikes-and-wave complexes.[ncbi.nlm.nih.gov] […] spikes or polyspike-wave discharges at 2-3 Hz with an absence of focal spikes; Exclusion of other syndromes, specifically, cryptogenic Lennox-Gastaut syndrome, benign or[symptoma.com] […] or polyspike-and-wave complexes and occurring singly.[ncbi.nlm.nih.gov]

    Missing: 'Eye of the Tiger' Sign on MRI Jerk-Locked Premyoclonus Spikes
  • West Syndrome

    The generalized tonic seizures began with bi-frontal polyspikes on EEG. Our diagnosis was lissencephaly presenting with West syndrome and generalized tonic seizures.[ncbi.nlm.nih.gov]

    Missing: 'Eye of the Tiger' Sign on MRI Jerk-Locked Premyoclonus Spikes
  • Idiopathic Generalized Epilepsy

    These patients had no family history of epilepsy, normal neurological evaluation, normal neuroimaging, interictal EEG showing generalized spike- and polyspike-wave discharges[ncbi.nlm.nih.gov] EEG usually shows bilateral, synchronous generalized spike-and-wave (GSW) or polyspike-and-wave discharges with a normal background.[symptoma.com] EEG shows generalized discharges of spikes, polyspikes, or spike/polyspike-waves either ictally or inter-ictally.[epilepsy.com]

    Missing: 'Eye of the Tiger' Sign on MRI Jerk-Locked Premyoclonus Spikes
  • Early Infantile Epileptic Encephalopathy Type 17

    […] slowing MRI-normal C-VI-7 16 yrs 9 mths 10 yrs GTCS, abs, MJ, FS 9 mths Mild – 6 yrs: generalized slowing 15 yrs: generalized polyspike wave MRI-normal C-VI-8 12 yrs 6 mths[dx.doi.org] EEG recordings showed a variety of changes: generalized spike wave and polyspike wave activity, focal discharges, focal or diffuse slowing or were normal.[dx.doi.org]

    Missing: 'Eye of the Tiger' Sign on MRI Jerk-Locked Premyoclonus Spikes
  • Juvenile Absence Epilepsy

    The EEG has generalized spike or polyspike slow-wave complexes. JAE is a lifelong disorder, although seizures can be controlled in 70% to 80% of patients.[pennsw.com.au] There may be generalized spike-and-wave, fragments of generalized spike-and-wave, or polyspike-and-wave. Caution .[medlink.com] Generalized polyspike-and-wave complexes also may be present, and focal features may be observed.[reference.medscape.com]

    Missing: 'Eye of the Tiger' Sign on MRI Jerk-Locked Premyoclonus Spikes
  • Myoclonic Jerking

    “Electrographically they were time locked with generalized polyspikes on the EEG record,” wrote the authors.[neurologyadvisor.com] Photic visual stimuli or touching may trigger myoclonic jerks, which may cause abnormalities on an EEG (eg, focal or generalized spike-and-wave or polyspike-and-wave epileptiform[merckmanuals.com] Ictal EEG : The myoclonic jerk correlates with a generalized spike-and-wave or polyspike-and-wave.[medlink.com]

    Missing: 'Eye of the Tiger' Sign on MRI Jerk-Locked Premyoclonus Spikes

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