"Petit mal variant" or Lennox syndrome.
D001930:Brain Injuries / Q000150:complications; D002675:Child, Preschool; D003937:Diagnosis, Differential; D004827:Epilepsy / Q000175:diagnosis; D004832:Epilepsy, Absence / Q000175:diagnosis*; D006801:Humans; D009069:Movement Disorders; D009207:Myoclonus / Q000175:diagnosis