Preoperative contrasted CT scans of the patient, showing multiple bilateral kidney tumors, with diameters ranging between 1 and 5 cm. Radiologically, most of the tumors have malignant characteristics due to their<unk>  and radiopaque enhancement.<unk>  is an increased number or concentration of blood vessels. In Graves disease, the thyroid gland is hypervascular, which can help in differentiating the condition from thyroiditis. 90% of thyroid papillary carcinoma cases are hypervascular.
Hypervascularity
Neovascularization
Vascular permeability
Angiomatosis
Scalding
Sclerosis 
Hydrodilatation
Intimal hyperplasia