What is the function of arterial embolization?

The primary function of arterial embolization is to prevent the growth of tumors by obstructing the blood supply to a particular region, usually through the intentional creation of a blood clot in the blood vessel. This process is particularly useful in tumor treatment as it can starve the tumor of the necessary nutrients and oxygen that it requires for growth. By targeting feeding arteries and causing them to clot, embolization effectively reduces blood flow to the tumor, potentially leading to its shrinkage or even necrosis.

The other options refer to different procedures and functions unrelated to arterial embolization. For example, reconstructing a blood vessel is more aligned with surgical interventions aimed at repair rather than obstruction. Likewise, draining fluid from a joint involves different medical techniques, such as aspiration, rather than an embolization approach. Bypass surgeries focus on rerouting blood flow rather than obstructing it to tackle tumor growth. Therefore, option B accurately reflects the role of arterial embolization in medical practice.