Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jul 2003. Module: SNOMED CT core
Descriptions:
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Pilar sheath acanthoma | Is a | False | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Tumour of follicular infundibulum | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Trichoadenoma | Is a | False | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Perifollicular fibroma | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Fibrofolliculoma | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Trichodiscoma | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Trichoepithelioma | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Trichofolliculoma | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Trichilemmoma (disorder) | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Pilomatrixoma | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Trichoblastoma | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Mantleoma (disorder) | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Trichogerminoma (disorder) | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Winer's dilated pore (disorder) | Is a | True | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | |
| Proliferating trichilemmal cyst of scalp (disorder) | Is a | False | Benign tumor of skin with pilar differentiation | Inferred relationship | Some | 
This concept is not in any reference sets