Biological Sciences and Healthcare, part 5

... > Observable entity > Proliferative mass observable (observable entity) > Tumor observable (observable entity) > Tumor extent of invasion (observable entity) > Tumor invasion > Presence of direct invasion by primary malignant neoplasm > Status of tumor vascular invasion (observable entity) > Presence of direct invasion by primary malignant neoplasm of gallbladder to lymphatic vessel and/or small blood vessel