<unk>  <unk>  is a rare, childhood neurological disorder characterized by the sudden or gradual development of aphasia (the inability to understand or express language) and an abnormal electro-encephalogram (EEG)
Landau-Kleffner syndrome
Smith-Lemli-Opitz syndrome
Singleton-Merten syndrome
Smith–Lemli–Opitz syndrome
Smith-Magenis syndrome
Cruveilhier-Baumgarten syndrome
Sturge-Weber syndrome
Turcot syndrome