NCIthesaurus derives from disease has location has_origin epithelial cell biliary tract benign neoplasm bile duct disease bile duct adenoma A biliary tract benign neoplasm that results_in a small firm white nodule with multiple bile ducts that are located_in a fibrous stroma. ICDO:8160/0 SNOMEDCT_US_2025_09_01:39471001 DOID:5381 UMLS_CUI:C0008309 Cholangioadenoma disease_ontology MESH:D002759 NCI:C2942 adenoma bile duct gland