| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Is a | Congenital heart disease | true | Inferred relationship | Existential restriction modifier |  |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Is a | Congenital hydrocephalus | true | Inferred relationship | Existential restriction modifier |  |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Is a | Multiple malformation syndrome with facial defects as major feature | true | Inferred relationship | Existential restriction modifier |  |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Is a | Autosomal recessive hereditary disorder | true | Inferred relationship | Existential restriction modifier |  |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Is a | Cardiovascular system hereditary disorder | true | Inferred relationship | Existential restriction modifier |  |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Is a | Hereditary disorder of nervous system | true | Inferred relationship | Existential restriction modifier |  |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Associated morphology | Developmental anomaly | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Occurrence | Congenital | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Finding site | Face structure | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Associated morphology | Congenital dilatation | false | Inferred relationship | Existential restriction modifier | 4 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Occurrence | Congenital | false | Inferred relationship | Existential restriction modifier | 4 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Finding site | Structure of brain cerebrospinal fluid pathway | false | Inferred relationship | Existential restriction modifier | 4 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Associated morphology | Developmental anomaly | false | Inferred relationship | Existential restriction modifier | 5 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Occurrence | Congenital | false | Inferred relationship | Existential restriction modifier | 5 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Finding site | Heart structure | false | Inferred relationship | Existential restriction modifier | 5 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Associated morphology | Congenital dilatation | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Finding site | Structure of brain cerebrospinal fluid pathway | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Finding site | Face structure | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Pathological process | Pathological developmental process | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Occurrence | Congenital | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Occurrence | Congenital | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Pathological process | Pathological developmental process | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Pathological process | Pathological developmental process | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Associated morphology | Morphologically abnormal structure | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Associated morphology | Morphologically abnormal structure | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Finding site | Heart structure | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Associated morphology | Dilatation | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Hydrocephalus, cardiac malformation, dense bone syndrome | Is a | Developmental hereditary disorder | true | Inferred relationship | Existential restriction modifier |  |  |