Figure 2

a) Lymphangiosis carcinomatosa in conventional staining (HE ×400); b) Specific reaction in lymphatic vessel endothelium (right) and no reaction in a blood capillary (left) (D2-40 ×400); c) and d) Different types of lymphatic vessel invasion: in c) single larger vessel, in d) some small vessels surrounded by inflammatory response (D2-40 ×400); e) tumor thromembolism in a blood vessel (note: erythrocytes) (HE ×400) – f) negative for D2-40 (D2-40 ×400).