Table 5

Differential diagnosis

Differential diagnosis: speech and language regression without seizures
Autism spectrum disorders
Landau–Kleffner dysphasia
Language and cognitive deterioration with continuous spike and wave in slow wave sleep (CSWS)
Speech deterioration in the epileptic syndrome of congenital bilateral perisylvanian syndrome and opercular syndromes
Late onset sensorineural hearing loss
Elective mutism