undetermined early-onset epileptic encephalopathy https://github.com/monarch-initiative/mondo/issues/4985 https://www.malacards.org/card/non_specific_early_onset_epileptic_encephalopathy non-specific early-onset epileptic encephalopathy MONDO:0018614 undetermined early-onset epileptic encephalopathy MEDGEN:1826068 UMLS:C5680057 Orphanet:442835 GARD:0015028 A rare infantile epilepsy syndrome characterized by early onset of seizures of variable type and severity, potentially associated with a spectrum of clinical signs and symptoms including delay or lack of psychomotor development, intellectual disability, poor or absent speech development, behavioral abnormalities, hypotonia, movement disorders, spasticity, microcephaly, and dysmorphic facial features, among others. Brain imaging findings are also variable and may include cerebral atrophy or white matter abnormalities. undetermined EOEE inborn disorder of amino acid transport neonatal epilepsy syndrome infantile epilepsy syndrome hereditary neurological disease