| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Congenital dilatation | Is a | False | Congenital cavitation | Inferred relationship | Existential restriction modifier |  | 
| Congenital cystic dilatation with accumulation of fluid | Is a | False | Congenital cavitation | Inferred relationship | Existential restriction modifier |  | 
| Congenital accumulation of fluid | Is a | False | Congenital cavitation | Inferred relationship | Existential restriction modifier |  | 
| Single congenital cerebral cyst | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple congenital cerebral cysts | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cystic adenomatoid malformation of lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Single lung cyst | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital cerebral cyst | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 2 | 
| Colloid cyst of third ventricle | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 3 | 
| Polycystic kidney disease, infantile type | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 4 | 
| Congenital choledochal cyst | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital porencephaly | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Microcystic renal disease | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital honeycomb lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cystic lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cerebral cyst NOS | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital cystic lung disease, unspecified | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Other specified congenital cystic lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cystic lung NOS | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| [EDTA] Polycystic kidneys, infantile (recessive) associated with renal failure | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital honeycomb lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital porencephaly | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cystic lung NOS | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cystic lung disease, unspecified | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cystic lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cystic adenomatoid malformation of lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Other specified congenital cystic lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Cystic malformation of posterior fossa | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 2 | 
| Dandy-Walker syndrome with spina bifida | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 4 | 
| Dandy-Walker syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 4 | 
| Posterior fossa arachnoid cyst | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 4 | 
| Persistent Blake's pouch cyst | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 2 | 
| Polycystic kidney disease, infantile type | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital porencephaly | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 3 | 
| Congenital cystic adenomatoid malformation of lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 3 | 
| Dandy-Walker syndrome with spina bifida | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 6 | 
| Hydrocephalus with cleft palate and joint contracture syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 8 | 
| Hydrocephalus with cleft palate and joint contracture syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 15 | 
| X-linked Dandy-Walker malformation with intellectual disability, basal ganglia disease and seizure syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 6 | 
| X-linked Dandy-Walker malformation with intellectual disability, basal ganglia disease and seizure syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 9 | 
| Craniosynostosis with Dandy-Walker malformation and hydrocephalus syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 10 | 
| Craniosynostosis with Dandy-Walker malformation and hydrocephalus syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 7 | 
| Macrocephaly, short stature, paraplegia syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 11 | 
| Spinal muscular atrophy, Dandy-Walker malformation, cataract syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 8 | 
| Spinal muscular atrophy, Dandy-Walker malformation, cataract syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 5 | 
| Facial dysmorphism, macrocephaly, myopia, Dandy-Walker malformation syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 10 | 
| Dandy-Walker malformation with postaxial polydactyly syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 6 | 
| Dandy-Walker malformation with postaxial polydactyly syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 5 | 
| Facial dysmorphism, macrocephaly, myopia, Dandy-Walker malformation syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 7 | 
| Porencephaly, cerebellar hypoplasia, internal malformations syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Posterior fossa arachnoid cyst | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Persistent Blake's pouch cyst | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Macrocephaly, short stature, paraplegia syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 6 | 
| Cystic malformation of posterior fossa | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Partial corpus callosum agenesis, cerebellar vermis hypoplasia with posterior fossa cysts syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 2 | 
| Porencephaly, microcephaly, bilateral congenital cataract syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 3 | 
| Hydrocephalus with cleft palate and joint contracture syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 7 | 
| Craniosynostosis with Dandy-Walker malformation and hydrocephalus syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 6 | 
| Facial dysmorphism, macrocephaly, myopia, Dandy-Walker malformation syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 6 | 
| Dandy-Walker syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 2 | 
| Dandy-Walker malformation with postaxial polydactyly syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 4 | 
| X-linked Dandy-Walker malformation with intellectual disability, basal ganglia disease and seizure syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 5 | 
| Macrocephaly, short stature, paraplegia syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 5 | 
| Spinal muscular atrophy, Dandy-Walker malformation, cataract syndrome | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 4 | 
| Congenital cystic lung disease, unspecified | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Other specified congenital cystic lung | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital cystic lung NOS | Associated morphology | False | Congenital cavitation | Inferred relationship | Existential restriction modifier | 1 |