| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Partial corpus callosum agenesis, cerebellar vermis hypoplasia with posterior fossa cysts syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Dandy-Walker syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Intellectual disability, coarse face, macrocephaly, cerebellar hypotrophy syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Congenital muscular dystrophy with cerebellar involvement | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| White matter hypoplasia, corpus callosum agenesis, intellectual disability syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Endosteal hyperostoses with cerebellar hypoplasia | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Congenital cerebellar ataxia due to RNU12 mutation | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Severe intellectual disability, agenesis of corpus callosum, facial dysmorphism, cerebellar ataxia syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| X-linked intellectual disability, cerebellar hypoplasia, spondyloepiphyseal dysplasia syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Lethal brain and heart developmental defects syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Cerebellar-facial-dental syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Congenital pontocerebellar hypoplasia | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Congenital hypoplasia of inner granular layer of cerebellum | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Granular cell hypoplasia | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Lissencephaly with cerebellar hypoplasia | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Congenital cerebellar hypoplasia co-occurrent with tapetoretinal degeneration | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| X-linked intellectual disability with cerebellar hypoplasia syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Porencephaly, cerebellar hypoplasia, internal malformations syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Microcephalus, cerebellar hypoplasia, cardiac conduction defect syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| Isolated cerebellar vermis hypoplasia | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  | 
| X-linked cerebral, cerebellar, coloboma syndrome | Is a | True | Congenital cerebellar hypoplasia | Inferred relationship | Some |  |