Biological Sciences and Healthcare, part 5

... > Observable entity > Surgical margin observable (observable entity) > Tumor margin involvement (observable entity) > Extent of surgical margin involvement by malignant neoplasm (observable entity) > Presence of primary malignant neoplasm of extrahepatic bile duct at surgical margin in excised specimen (observable entity) > Presence of primary malignant neoplasm of extrahepatic bile duct at parenchymal surgical margin in pancreaticoduodenectomy specimen