Renal arteriovenous malformation presenting with massive hematuria

Abstract

Renal arteriovenous malformations are abnormal communications between the intrarenal arterial and venous systems. They are a rare cause of hematuria. Color Doppler ultrasonography, multislice CT angiography, and DSA are important tools for making the diagnosis. We describe the case of a 62-year-old man with renal arteriovenous malformation who presented with gross hematuria.

Fig. 1

62-year-old male with renal arteriovenous malformation. Findings: Maximum intensity projection, in axial plane of CT renal angiography in arterial phase demonstrating aneurysmal dilatation of segmental branch (arrowhead) of main renal artery (black arrow) with early opacification of renal vein (white arrow) suggestive of arteriovenous malformation. Technique: Scanner: Siemens Somatom sensation 64, 200Eff mAs, 120 kV, slice thickness 10mm, intravenous contrast: 100 ml Omnipaque 350 mg/dl.

Fig. 2

62-year-old male with renal arteriovenous malformation. Findings: Volume-rendered oblique coronal image of right kidney in arterial phase of CT angiography showing aneurysmal dilatation of segmental branch at lower pole with early opacification of renal vein suggestive of arteriovenous malformation. Technique: Scanner: Siemens Somatom sensation 64, 200Eff mAs, 120 kV, slice thickness 10mm, intravenous contrast: 100 ml Omnipaque 350 mg/dl.