Incidental Finding of Right Renal Vein Aneurysm in a Patient With Hematuria

Incidental finding of circumaortic left renal vein aneurysm on imaging

“…We found 16 reported cases of RVAs, 2 , 3 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 14 , 15 , 16 , 17 with only 1 case in association with a CRV. 2 Patient age ranged from 17 to 66 years (average, 43 years).…”

“…3 Abdominal pain was the presenting symptom in six cases [7][8][9][10][11] and hematuria in four patients. 7,[12][13][14] Etiology was unknown for most cases 2,4,6,7,11,14 ; however, five were thought to be related to arteriovenous fistula or other vascular malformation, 5,8,13,15,16 two were thought to be related to malignancy, 3,12 and one attributed to nutcracker syndrome. 10 Complications ranged from none to thrombosis, pulmonary thromboembolism, and rupture.…”

“… 1 This uncommon entity will frequently be found incidentally. 2 , 3 , 4 , 5 , 6 However, patients can present with abdominal pain, 7 , 8 , 9 , 10 , 11 hematuria, 7 , 12 , 13 , 14 heart failure, 15 pulmonary embolism (PE), 16 , 17 or portal hypertension. 9 RVAs can be categorized as either primary or secondary.…”

Ex Vivo Resection and Renal Autotransplantation for the Treatment of a Large Renal Vein Aneurysm Causing Recurrent Pulmonary Embolism and a Coexisting Vascular Malformation

“…Renal vein aneurysms may also be encountered in patients with renal carcinoma, hematuria, and back pain. [7][8][9] Dale and colleagues reported late RVA formation 4 years after renal transplantation. 10 Most of the experience of surgical interventions for RVAs reported in the literature are related to nutcracker syndrome.…”

“…1 A recent PubMed query (April 2016; with the key words ''renal,'' ''vein,'' and ''aneurysm'') identified only 14 cases in the English literature. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] The RVAs may be broadly classified as primary or secondary. Primary RVAs are probably related to congenital weakness of the venous wall with an associated underdevelopment of the media.…”