Sammanfattning
Landau-Kleffner syndrome is a rare childhood-onset epileptic encephalopathy. The condition should be suspected if a child with normal
development shows a fairly abrupt loss of established language skills. Such children should be referred to a regional department of paediatric
medicine or the National Centre for Epilepsy for a broad interdisciplinary work-up. An EEG examination during wakefulness and sleep is essential
for diagnosis.