| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Is a | Letterer-Siwe disease | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Is a | Langerhans cell histiocytosis, disseminated (disorder) | true | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | histiocytos av Langerhans celler | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | Langerhans cell histiocytosis, disseminated (morphologic abnormality) | false | Inferred relationship | Some | 2 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Pathological process | Malignant neoplastic process | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Finding site | Structure of lymph node of thorax | false | Inferred relationship | Some | 1 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Finding site | Leukocyte | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Course | Persistent embryonic otic artery | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Course | Boomerang dysplasia | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Course | Persistent embryonic hypoglossal artery | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Course | Worth disease | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Finding site | Dendritic cell system structure (body structure) | false | Inferred relationship | Some | 1 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Is a | Disorder of lymph node | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Is a | tumör, indelning efter lokalisation | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Is a | Neoplasm of intrathoracic lymph nodes | true | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | Langerhans cell histiocytosis, disseminated (morphologic abnormality) | false | Inferred relationship | Some | 1 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | Langerhans cell histiocytosis, disseminated (morphologic abnormality) | false | Inferred relationship | Some | 2 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | Langerhans cell histiocytosis, disseminated (morphologic abnormality) | false | Inferred relationship | Some | 1 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | White blood cell abnormality (morphologic abnormality) | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | Langerhans cell histiocytosis, disseminated (morphologic abnormality) | false | Inferred relationship | Some | 2 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Finding site | Hematopoietic system structure | false | Inferred relationship | Some | 3 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | malign tumör, morfologi | false | Inferred relationship | Some | 3 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Finding site | Lymphoid system structure | false | Inferred relationship | Some | 3 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | histiocytos av Langerhans celler, kategori | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Is a | Primary malignant neoplasm of trunk | false | Inferred relationship | Some |  |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Associated morphology | Langerhans cell histiocytosis, disseminated (morphologic abnormality) | true | Inferred relationship | Some | 1 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Finding site | Structure of lymph node of thorax | true | Inferred relationship | Some | 1 |  | 
| Letterer-Siwe disease of intrathoracic lymph nodes | Is a | Malignant neoplasm of thorax | true | Inferred relationship | Some |  |  |