| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Primary malignant neoplasm of soft tissues of head (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Metastatic malignant neoplasm to soft tissues of head | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of lower labial sulcus | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Squamous cell carcinoma of mouth | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of lip | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of anterior two-thirds of tongue | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumour of commissure of lip | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumour of tongue | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of base of tongue | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of gum | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of floor of mouth | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumour of buccal mucosa | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumour of soft palate | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of soft tissue of face | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumour of conjunctiva | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumour of tonsillar pillar | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of border of tongue (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Basal cell carcinoma of skin of lip (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Squamous cell carcinoma of palate | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumour of upper labial sulcus | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of frenum linguae | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of connective tissue of orbit | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of cartilage of nose | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Squamous cell carcinoma of oral mucous membrane (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of soft tissue of orbit (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of border of tongue (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of anterior two-thirds of tongue | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of base of tongue | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of frenum linguae | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of dorsal surface of tongue | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of sublingual gland | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of inferior surface of soft palate | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| maligne neoplasma van nasofaryngeaal oppervlak van palatum molle (aandoening) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of uvula | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor aryepiglottic fold - hypopharyngeal aspect | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of floor of nasopharynx | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of aryepiglottic fold - laryngeal aspect | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumour of upper buccal sulcus | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant melanoma of oral cavity (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant tumor of lower buccal sulcus | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of glossoepiglottic fold | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant melanoma of skin of ear | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of skin of ear and external auditory canal (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of skin of auricle (ear) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Malignant neoplasm of skin of external auditory meatus (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Basal cell carcinoma of ear (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Squamous cell carcinoma of skin of ear (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Kaposi's sarcoma of soft palate (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of middle ear, IRS grade III (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of infratemporal region, IRS grade I (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of parotid gland, IRS grade III | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of infratemporal region, IRS grade II (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of nasal sinus, IRS grade II (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of oral cavity, IRS grade III (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of infratemporal region, IRS grade III (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of nasal sinus, IRS grade I (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of head, IRS grade III (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of nasal cavity, IRS grade III (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of middle ear, IRS grade I (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of head, IRS grade I (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of nasopharynx, IRS grade I (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of nasal cavity, IRS grade I (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of nasal sinus, IRS grade III (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of nasopharynx, IRS grade II (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of nasopharynx, IRS grade III (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of parotid gland, IRS grade I | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of oral cavity, IRS grade II (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of oral cavity, IRS grade I (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of middle ear, IRS grade II (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of parotid gland, IRS grade II (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of head, IRS grade II (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of nasal cavity, IRS grade II (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of pterygopalatine area, IRS grade III (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of pterygopalatine area, IRS grade II | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Non-rhabdomyosarcoma soft tissue sarcoma of pterygopalatine area, IRS grade I (disorder) | Is a | False | Malignant tumour of soft tissue of head | Inferred relationship | Some |  | 
| Carcinoma of skin of ear (disorder) | Is a | True | Malignant tumour of soft tissue of head | Inferred relationship | Some |  |