<unk>  are a type of EEG abnormality. They are one of the most frequent paroxystic complexes. They are basically triphasic with sharply contoured wave followed by a slow wave mostly occurring unilaterally with duration 100-300 msec and amplitude 100-300 often present with fast rhythm between discharges. In recent literature it is referred to as<unk>  periodic discharges.
Periodic lateralized epileptiform discharges
Generalized periodic epileptiform discharges
Periodic short-interval diffuse discharges
Inter-ictal spiking
Intermittent rhythmic delta activity
Bilateral frontoparietal polymicrogyria
Intercalated seizure
Pigmentatio reticularis faciei et colli