Fig. 2From: Varicocele due to renal arteriovenous malformation mimicking a renal tumor: a case reportDigital subtraction angiography showed renal arteriovenous malformation by demonstrating abnormal arterial communication with vein (green arrows) in the upper pole with premature visualization of the dilated venous system, which included renal vein (blue arrow), lumbar vein (yellow arrow), and the left gonadal vein (red arrow)Back to article page