| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Fetal macrocephaly (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 2 | 
| Fetal macrocephaly (disorder) | Finding site | True | Entire head | Inferred relationship | Some | 1 | 
| Bannayan syndrome | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| macrocéphalie | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Relative macrocephaly | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Macrocephaly with spastic paraplegia and dysmorphism syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 4 | 
| Heide syndrome | Finding site | False | Entire head | Inferred relationship | Some | 3 | 
| X-linked intellectual disability Atkin type (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| X-linked recessive intellectual disability and macrocephaly with ciliary dysfunction syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| X-linked intellectual disability, macrocephaly, macroorchidism syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Decapitation | Finding site | False | Entire head | Inferred relationship | Some | 2 | 
| Overgrowth, macrocephaly, facial dysmorphism syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 3 | 
| Overgrowth, macrocephaly, facial dysmorphism syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 2 | 
| Macrocephaly, short stature, paraplegia syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 8 | 
| Acephaly | Finding site | True | Entire head | Inferred relationship | Some | 1 | 
| Macrocephaly, obesity, mental disability, ocular abnormality syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 3 | 
| Facial dysmorphism, macrocephaly, myopia, Dandy-Walker malformation syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 11 | 
| Macrocephaly and developmental delay syndrome | Finding site | False | Entire head | Inferred relationship | Some | 2 | 
| Malan overgrowth syndrome | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Macrocephaly and developmental delay syndrome | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Pectus excavatum, macrocephaly, dysplastic nails syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 3 | 
| Pectus excavatum, macrocephaly, dysplastic nails syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 2 | 
| Intellectual disability, seizures, macrocephaly, obesity syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Macrocephaly, obesity, mental disability, ocular abnormality syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 2 | 
| Macrocephaly with spastic paraplegia and dysmorphism syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 2 | 
| Facial dysmorphism, macrocephaly, myopia, Dandy-Walker malformation syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Macrocephaly, short stature, paraplegia syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 2 | 
| Heide syndrome | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Acephalothorax | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Macrocephaly, intellectual disability, autism syndrome (disorder) | Finding site | False | Entire head | Inferred relationship | Some | 1 | 
| Decapitation | Finding site | True | Entire head | Inferred relationship | Some | 1 |