Clinical and Radiological Significance of the Retroaortic Left Renal Vein

Öz

Aim:

Retroaortic left renal vein is an anatomical variation with a relatively increasing frequency due to the growth in the number of radiological imaging. It is usually asymptomatic. In this study, it was aimed to identify if there is a pressure increase in asymptomatic patients by measuring the diameters of left gonadal vein and left renal vein in the patients with left renal vein through contrast abdomen computed tomography .

Materials and Methods:

This study included a patient group consisting of 138 patients who were diagnosed with retroaortic left vein through CT examination and 100 participants sharing common age and gender patterns with the control group. Preaortic  segment of left renal vein diameter, narrowest retroaortic segment o left renal vein diameter and  left  gonadal vein diameter measured.

Results:

When diameters of left renal vein at preaortic segment belonging to the control group and the patients with RLRV, it was significantly higher in the patients with retroaortic left renal vein. Furthermore left gonadal vein diameter was found to have increased in the patients with retroaortic left renal vein compared to the control group.

Conclusion:

In conclusion, while retroaortic left renal vein is typically an asymptomatic anatomical variation, it can cause press of left renal vein at posterior of aorta  and pressure increase in left renal vein and gonadal vein. This pressure increase is important in terms of pelvic congestion in women and varicosele etiology in men. Moreover, it can lead to clinical symptoms like flank pain and hematuria by causing retroaortic impingement syndrome.

Anahtar Kelimeler

• computed tomography,pelvic congestion,retroaortic left renal vein

Retroaortik sol renal venin klinik ve radyolojik önemi

Öz

Amaç:

Retroaortik sol renal ven radyolojik görüntüleme sıklığının artması nedeniyle son yıllarda sıklığı görece artan anatomik varyasyondur. Sıklıkla asemptomatiktir. Biz çalışmamızda kontrastlı abdomen bilgisayarlı tomografi  tetkikinde  retroaortik sol renal ven saptanan hastalarda sol renal ven ve sol gonodal ven çaplarını ölçerek asemptomatik hastalarda vende basınç artışı olup olmadığını göstermeyi amaçladık.

Gereç ve Yöntemler:

Çekilen kontrastlı abdomen BT tetkiklerinde saptanan retroaortik sol renal veni bulunan 138 hasta ve hasta grubu ile yaş ve cinsiyet benzerliği bulunan 100 kişi dahil edildi. Sol renal ven çapı, retroaortik sol renal venin aorta posteriorunda en dar olduğu segmentte çapı ve sol gonadal ven çapı ölçüldü.

Bulgular:

Kontrol grubu ve retroaortik sol renal ven bulunan hastaların preaortik segmentte sol renal ven çapları karşılaştırıldığında, retroaortik sol renal ven bulunan hastalarda anlamlı olarak daha yüksek bulundu. Aynı zamanda sol gonadal ven çapları retroaortik sol renal ven bulunan hastalarda kontrol grubu ile karşılaştırıldığında artmış olarak bulundu.

Sonuç:

Sonuç olarak retroaortik sol renal ven sıklıkla asemptomatik seyreden anatomik bir varyasyon olmakla birlikte sol renal venin aorta arkasında sıkışması ile sol renal ven ve gonadal venlerde basınç artışına neden olabilir. Bu basınç artışı kadınlarda pelvik konjesyon erkeklerde ise varikosel etyolojisinde önemlidir. Aynı zamanda retroaortik sıkışma sendromuna neden olarak hematüri ve yan ağrısı gibi klinik semptomlara yol açabilir. 

Anahtar Kelimeler

• bilgisayarlı tomografi,pelvik konjesyon,retroaortik sol renal ven

Kaynakça

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