Electromyographic artifacts are sometimes misinterpreted as @entity302 discharges in scalp electroencephalograms (EEGs). In addition, the distribution of the @entity302 discharges near the earlobe is often distorted by earlobe activation; therefore, these @entity302 discharges may not be correctly diagnosed. Here, we report a case of palatal @entity400 in which diffuse spike-wave-like discharges were apparent on EEG. A 51-year-old @entity1 was referred to our hospital because of transient @entity909 while driving. She had a past history of @entity385 , @entity548 , and @entity302 . Magnetic resonance imaging findings showed T2 hyperintensity in the right inferior olivary nucleus. Single-photon emission computerized tomographic images demonstrated hypoperfusion of the left basal ganglion, bilateral thalamus, and bilateral anteroparietal lobes. Monopolar EEG recording showed diffuse spike-wave-like discharges with a frequency of 3-4 Hz cycle. To clarify the origin of these discharges, pharyngeal EEG recording simultaneously with conventional scalp electrodes was performed, which revealed that the discharges originated from the left pharynx. @entity2472 could be identified at the posterior pharynx and soft palate on close pharyngeal inspection. The electromyographic activities of the palatal @entity400 spread to the earlobe, and the activated earlobe electrodes apparently induced diffuse spike-wave-like discharges observed on monopolar EEG recording.

[Electroencephalogram with Pharyngeal Electrodes to Identify the Origin of Diffuse Spike-Wave-Like Discharges in a Case of Palatal XXXX ].

@entity1 :: ('9606', 'Species') :: ['woman'] @entity548 :: ('MESH:D006470', 'Disease') :: ['cerebellar hemorrhages'] @entity909 :: ('MESH:D014474', 'Disease') :: ['loss of consciousness'] @entity400 :: ('MESH:D014202', 'Disease') :: ['tremor'] @entity302 :: ('MESH:D004827', 'Disease') :: ['symptomatic epilepsy', 'epileptic'] @entity2472 :: ('MESH:C536214', 'Disease') :: ['Rhythmic muscle contraction'] @entity385 :: ('MESH:D002544', 'Disease') :: ['cerebral infarction']
@entity400 :: (MESH:D014202,Disease) :: ['Tremor']
