Vascular cancer thrombosis (+), which means that during postoperative pathological examination, cancer thrombosis is found in the vasculature, or more specifically, cancer cells accumulate in the blood vessels and lymphatic vessels and form emboli attached to the walls of blood vessels or lymphatic vessels. Cancer cells in the embolus can flow with blood and lymphatic fluid to various tissues and organs throughout the body, causing distant metastasis. In addition, the cancer embolus can be shed, and the shed embolus can block the blood vessel and cause infarction of corresponding organs, such as brain infarction and lung infarction. Therefore, once a vascular cancer thrombus (+) is detected, it often indicates a high risk of metastasis and is a high-risk factor, suggesting that the patient’s condition is serious and requires active systemic and local treatment.