Sclerotherapy is a medical procedure for the treatment of abnormal veins (spider veins, varicose veins, or vascular malformations). Sclerotherapy involves injecting a solution or foam (sclerosant) directly into the blood vessel, causing it to shrink and over time, the vessel fades from view.
Vascular malformations are uncommon benign vascular lesions that often don’t present in patients until their teens or early twenties. MRI and ultrasound are the best way to image vascular malformations. Historically vascular malformations have been treated mostly by surgery, however more recently interventional radiology using image guided sclerotherapy has become the first treatment option for many patients.