Researchers at Thomas Jefferson University Hospital, Philadelphia, PA, report a case of “dancing epilepsy” in a 39-year-old, right-handed man who developed refractory complex partial seizures following head trauma at 15 years of age. During video-EEG monitoring of an episode of dancing movements with unresponsiveness lasting a few minutes, the ictal EEG was poorly localized, whereas the interictal EEG showed a left anterior temporal sharp wave focus. The MRI showed left frontal and right anterior temporal encephalomalacia and gliosis. The authors comment that dancing movements are a new behavioral manifestation of epilepsy, not typical of temporal lobe epilepsy, and more suggestive of frontal lobe epilepsy. 
COMMENT. Dancing as a form of epilepsy is a complex automatism, such as running (epilepsia cursiva) or bicycling movements. Lennox WG, in his book on epilepsy (1960;page 260) refers to episodes of running, spinning round and around, in seizures following head injury.