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577 Possible Causes for 'Eye of the Tiger' Sign on MRI, Jerk-Locked Premyoclonus Spikes, Spike-and-Slow-Waves

  • Benign Adult Familial Myoclonic Epilepsy

    […] and slow wave seen in at least 85% of slow-wave sleep.  Characterized by a hallmark EEG presentation, called continuous spike and-wave during sleep (CSWS) or electrical[slideshare.net] T2 weighted brain MRI shows an ”eye of the tigersign corresponding to pallidal hypointensity with a high signal center.[neuroweb.us] […] cortical spikes detected by the jerk-locked back-averaging) ( Ikeda et al., 1990 ).[academic.oup.com]

  • Generalized Clonic or Tonic-Clonic Seizures

    , poly spike discharges." [2] The clonic phase EEG will show "high amplitude activity that is typically interrrupted by slow waves to create a spike-and-slow-wave pattern.[en.wikipedia.org] premyoclonus spikes Hand tremor Neuronal loss in central nervous system Cutaneous photosensitivity Hyperreflexia Heterogeneous Weight loss Dystonia Splenomegaly Thrombocytopenia[mendelian.co] According to "Harrisons Manual of Medicine," the EEG during the tonic phase will show a "progressive increase in low-voltage fast wave activity, followed by generalized high-amplitude[en.wikipedia.org]

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

    […] predominance, and multifocal spike-and-slow waves.[ncbi.nlm.nih.gov] Electroencephalography showed spike-slow waves and slow waves with mixed asynchronized spike waves originating from the frontal lobe during the sleep stage.[ncbi.nlm.nih.gov] At 9 years, video EEG monitoring showed a striking pattern of interictal slow spike-wave and paroxysmal fast activity, maximal over the right, initially unaffected, hemisphere[ncbi.nlm.nih.gov]

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

    The spike-peak and slow-wave onset phases did not show a consistently dominant outflow region.[ncbi.nlm.nih.gov] We applied dipole modeling and brain distributed source analysis to find current sources comprising spikes and slow waves of polyspike and wave complexes (PSWC) in patients[ncbi.nlm.nih.gov] The discharge is frequently short and fragmented, the spike and slow wave complexes show interdischarge frequency variations with multiple spikes and other characteristics[neurologyindia.com]

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

    His epileptic disorder evolved over time into drug-resistant epilepsy with continuous spike-waves during slow sleep and severe behavioral impairment.[ncbi.nlm.nih.gov] Jerk-locked back averaging (JLA) of magnetoencephalogram disclosed a spike preceding the jerk localized at the hand motor area, whereas JLA of electroencephalogram revealed[ncbi.nlm.nih.gov] Focal EEG abnormalities commonly consisted of discrete spikes, sharp waves, or slow-wave activity.[archneur.jamanetwork.com]

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

    EEG showed long sequences of slow spike-wave activity and half the patients had spike and slow wave foci.[ncbi.nlm.nih.gov] The interictal EEG revealed frequent bursts of generalized 100-200 μV, 2-4 Hz spike-and-slow-wave complexes.[ncbi.nlm.nih.gov] Furthermore, data of spike-wave complexes ranging in frequency 4-7 Hz tend to accompany photosensitivity. Parietal theta and background slowing are also present in EEG.[symptoma.com]

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

    […] and slow-wave activity ( Gibbs and Gibbs 1952 ).[medlink.com] Interictal EEG displays diffuse and asynchronous high voltage spikes and slow waves suggesting the hypsarrhythmic pattern. B.[bmcneurol.biomedcentral.com] Interictal The background EEG is often highly disorganized with high voltage irregular slow waves intermixed with multifocal spikes and polyspikes, this is termed 'hypsarrhythmia[epilepsydiagnosis.org]

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

    Panayiotopoulos et al. (1994) [21] observed that 51.5% of patients had spike/multiple spike-slow wave discharges.[annalsofian.org] […] during tonic phase; bursts of spikes and slow waves during clonic phase 70% are seizure -free under treatment In some cases, no medical therapy is necessary avoid triggers[amboss.com] […] and wave photic driving photoparoxysmal response photomyogenic artifact poly spike and wave posterior dominant rhythm POSTs RMTTD sawtooth waves SIRPIDs sleep spindles slow[eegatlas-online.com]

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

    All patients had minimum twice EEG recordings and all had typical 3-Hz generalized spike and slow-wave discharges at least on one EEG.[ncbi.nlm.nih.gov] EEG shows classical generalized 3 Hz spike-and-slow-wave discharges.[medlink.com] Diagnostic methods Diagnosis relies on the clinical features and on electroencephalogram (EEG) recorded awake and during sleep, that displays a generalized 3-4 Hz spike-and-slow-wave[orpha.net]

    Missing: 'Eye of the Tiger' Sign on MRI Jerk-Locked Premyoclonus Spikes
  • Early Infantile Epileptic Encephalopathy Type 6

    spike and slow wave pattern of 1.5 to 2 Hz, [and it has] different seizure types.[neurologylive.com] At onset, EEG is usually normal but later spikes or poly spike-waves with a slowing of background activity are noted as well as multifocal discharges.[orpha.net] Four children had generalized spike and slow wave or polyspike and slow wave.[neurology.org]

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

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