Focal electroencephalography rhythm asymmetry due to focal skull fibrous dysplasia

Focal electroencephalography rhythm asymmetry due to focal skull fibrous dysplasia

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An unusual pervasive and persistent asymmetry in background rhythm was found on surface electroencephalography (EEG) recordings in a 22 year old with new onset of generalized seizure activity.Radiographic correlation with computed click here tomography, positron emission tomography and bone scan imaging uncovered that the higher amplitude left frontal-parietal background activity was related to a circumscribed area of stickers logos dallas cowboys left frontal-parietal fibrous dysplasia affecting the skull.This case report emphasizes that the presumed higher electrical conductance of fibrous dysplasia lead to a greater transparency of normal background rhythms, and must be taken into account as a form of breach rhythm for accurate EEG interpretation.