Yes, an arteriovenous malformation (AVM) can turn cancerous. An AVM is an abnormal connection between arteries and veins that bypasses normal capillary circulation. When this occurs, the connection can become clogged or blocked, leading to the formation of a tumor. The tumor can then become cancerous.
The risk of an AVM becoming cancerous is very low, but it is possible. Factors such as the size and location of the AVM, as well as the health of the patient, can increase the chances of it becoming cancerous. Also, certain treatments such as radiation therapy and chemotherapy can increase the risk of an AVM turning cancerous.
If an AVM is suspected of being cancerous, a biopsy is usually performed to confirm the diagnosis. If the biopsy reveals cancerous cells, then a more detailed imaging test, such as an MRI or CT scan, can be used to determine the size and extent of the cancer. Treatment for cancerous AVMs typically involves surgery to remove the tumor and any affected tissue. Additionally, radiation therapy may be used to reduce the size of the tumor or to destroy any remaining cancer cells.
In conclusion, although the risk is low, it is possible for an AVM to become cancerous. If you think you may have an AVM, it is important to talk to your doctor about the potential risks and to arrange for regular tests and screenings to monitor it.