syndromic disease hereditary disease Christianson syndrome https://github.com/monarch-initiative/mondo/issues/4521 https://rarediseases.info.nih.gov/diseases/10572/christianson-syndrome https://www.malacards.org/card/christianson_syndrome https://www.malacards.org/card/intellectual_developmental_disorder_x_linked_syndromic_christianson_type intellectual disability, microcephaly, epilepsy, and ataxia syndrome X-linked intellectual disability - craniofacial dysmorphism - epilepsy - ophthalmoplegia - cerebellar atrophy Angelman-like syndrome X-linked OMIM:300243 ICD9:759.89 intellectual disability microcephaly epilepsy and ataxia syndrome GARD:0010572 intellectual disability, X-linked, syndromic, Christianson type MESH:C567484 intellectual disability, X-linked syndromic, Christianson type MEDGEN:394455 A very rare form of syndromic intellectual deficit characterized by microcephaly, severe developmental delay or regression, hypotonia, abnormal movements, and early-onset seizures. SCTID:702354007 X-linked Angelman-like syndrome UMLS:C2678194 DOID:0060825 MRXS Christianson intellectual disability X-linked syndromic Christianson type mental retardation, X-linked, syndromic, Christianson type MRXSCH MONDO:0010278 intellectual developmental disorder, X-linked syndromic, Christianson type Christianson syndrome Orphanet:85278 mental retardation, microcephaly, epilepsy, and ataxia syndrome multiple congenital anomalies/dysmorphic syndrome-intellectual disability X-linked cerebellar ataxia X-linked syndromic intellectual disability obsolete_Christianson syndrome