| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Papillary carcinoma in situ | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Glandular intraepithelial neoplasia, grade III | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Papillary squamous cell carcinoma, non-invasive | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Intraductal papillary-mucinous carcinoma, non-invasive | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Intraductal micropapillary carcinoma | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Papillary transitional cell carcinoma, non-invasive | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Cribriform carcinoma in situ | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Ductal carcinoma in situ, solid type | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Mucinous cystadenocarcinoma, non-invasive | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Intratubular malignant germ cells | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Queyrat's erythroplasia | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Intraductal carcinoma and lobular carcinoma in situ | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Squamous intraepithelial neoplasia, grade III | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Noninfiltrating intraductal papillary adenocarcinoma | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Precancerous melanosis | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Adenocarcinoma in situ in villous adenoma | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Adenocarcinoma in situ in tubulovillous adenoma | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Adenocarcinoma in situ | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Transitional cell carcinoma in situ | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Squamous cell carcinoma in situ with questionable stromal invasion | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Squamous cell carcinoma in situ, no International Classification of Diseases for Oncology subtype | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Adenocarcinoma in situ in adenomatous polyp | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Lentigo maligna | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma in situ, no International Classification of Diseases for Oncology subtype | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Lobular carcinoma in situ | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Melanoma in situ | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Comedocarcinoma, noninfiltrating | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Bowen's disease | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Intraductal carcinoma, noninfiltrating, no International Classification of Diseases for Oncology subtype | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Noninfiltrating intracystic carcinoma | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Precancerous melanosis | Associated morphology | False | In situ neoplasm | Inferred relationship | Existential restriction modifier | 2 | 
| In situ melanocytic morphology | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Bowenoid papulosis | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma in situ - category | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Squamous intraepithelial neoplasia - category | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| In situ adenomatous neoplasm - category | Is a | False | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Paget's disease of vulva | Associated morphology | False | In situ neoplasm | Inferred relationship | Existential restriction modifier | 2 | 
| In situ neoplasm of vulva | Associated morphology | False | In situ neoplasm | Inferred relationship | Existential restriction modifier | 1 | 
| Corneal intraepithelial neoplasia | Associated morphology | False | In situ neoplasm | Inferred relationship | Existential restriction modifier | 1 | 
| Corneal intraepithelial neoplasia | Associated morphology | True | In situ neoplasm | Inferred relationship | Existential restriction modifier | 1 | 
| In situ neoplasm of vulva | Associated morphology | True | In situ neoplasm | Inferred relationship | Existential restriction modifier | 1 | 
| Paget's disease of vulva | Associated morphology | False | In situ neoplasm | Inferred relationship | Existential restriction modifier | 2 | 
| Mucinous cystic neoplasm with high-grade intraepithelial neoplasia | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| In situ mantle cell neoplasia | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| In situ follicular neoplasia | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Endometrioid intraepithelial neoplasia | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| High grade glandular intraepithelial neoplasia | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Mesothelioma in situ | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma in situ | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| Squamous intraepithelial neoplasia | Is a | True | In situ neoplasm | Inferred relationship | Existential restriction modifier |  | 
| In situ neoplasm of skin | Associated morphology | True | In situ neoplasm | Inferred relationship | Existential restriction modifier | 1 |