What are arteriovenous malformations?
Arteriovenous malformations or AVMs are abnormal clusters of blood vessels when the artery and veins are connected together without the intervening capillary bed. This can be seen in any part of the body but can be very dangerous when it is in the brain where it is prone to bleed which can lead to death. There are several treatment options for AVMs from surgery to minimally invasive interventional radiology techniques. AVMs in the upper and lower limbs when small go undetected however when they are large produce significant deformities and disfigurement.