has characteristic has characteristic Infantile onset obsolete ARX-related epileptic encephalopathy infantile epileptic-dyskinetic encephalopathy https://github.com/monarch-initiative/mondo/issues/6752 https://github.com/monarch-initiative/mondo/issues/6877 MEDGEN:1637882 MESH:C567924 Infantile epileptic-dyskinetic encephalopathy is a monogenic disease with epilepsy characterized by developmental delay and infantile spasms in the first months of life, followed by chorea and generalized dystonia and progressing to quadriplegic dyskinesia, recurrent status dystonicus, intractable focal epilepsy and severe intellectual disability. MONDO:0018226 GARD:0017582 UMLS:C4552072 Orphanet:364063 combined dystonia