👉 Cancer veins are abnormal blood vessels that develop in tumors, which are uncontrolled growths of cells in the body. These veins lack the normal structure and function of healthy blood vessels, instead forming disorganized networks that feed the tumor with nutrients and oxygen. Unlike normal veins, cancer veins do not have valves to prevent backflow, allowing blood to pool within the tumor. This abnormal vascularization can contribute to tumor growth and metastasis, making it a target for cancer treatment strategies.
