Radiology has evolved to include the Department of Interventional Radiology, through which some diseases are treated apart from surgical interventions. The Department of Interventional Radiology treats some problems, including: vascular diseases such as varicose veins, blind venous thrombosis, and intestinal thrombosis. The Department of Interventional Radiology treats tumors, the most famous of which are malignant liver tumors, and uterine fibroids. The department also treats neurological diseases such as carotid artery stenosis and multiple sclerosis. The Department of Interventional Radiology treats kidney diseases such as renal artery stenosis and renal sympathetic innervation.