Sağda çift arteria renalis ve çift vena renalis olgusu

Özet

Arteria renalis'ler lumbal birinci ve ikinci vertebralar arasındaki diskus seviyesinde, aorta abdominalis'in yan yüzlerinden sağlı sollu birer sayıda çıkarlar. Vena renalis'ler ise her iki böbrekten başlayıp hemen hemen dik bir açıyla vena cava inferior'a dökülürler. Kompleks bir embriyolojik gelişim göstermesinden dolayı, böbrek damarlarının anatomisi oldukça varyasyon gösterir. Arteria renalis'lerin orijin, sayı ve dallanma anomalilerine sahip olabilecekleri kadavra disseksiyonlarında ve klinik çalışmalarda gösterilmiştir. Doğrudan aorta'dan birden fazla sayıda çıkıp direkt hilum renale'ye giden iki (%10-12) ve üç sayıda (%1) a. renalis varyasyonları bildirilmiştir. Renal venlerin sayı anomalileri ise renal arterlerden daha az oranda görülmektedir. Rutin diseksiyonlar esnasında, 54 yaşında bir kadın kadavra da sağda çift a. v. renalis'ler görüldü. Venae renalis'lerin; v. cava inferior'a açıldığı nokta itibariyle aralarında 1,90 cm'lik uzaklık ölçüldü. Arterler truncus coeliacus'dan sırasıyla 1,80 cm ve 2,75 cm uzaklıkta aorta abdominalis'den ayrılmışlardı. Ayrıca v. ovarica dextra'nın v. cava inferior yerine, alttaki v. renalis'e açıldığı tespit edildi. Bu olgudaki renal damarların sayı anomalileri, klinik önemi de dikkate alınarak, embriyolojik temeliyle birlikte literatür bilgileriyle karşılaştırılarak sunuldu.

Anahtar sözcükler: Arteria renalis, vena renalis, varyasyon, kadavra

Abstract

Renal arteries originate from the abdominal aorta at the level of the intervertebral disc between the first and the second lumbar vertebrae. Renal veins following leaving the kidney, drain to inferior vena cava. Since its embriological development shows complexity, anatomy of the renal vessels are variational. It has been observed that renal arteries have anomalies related with the number, origin, courses, and branches at the clinical and cadaveric studies. It has been reported variations of the renal artery which directly originated from abdominal aorta as more than one branch; two (10-12%) and three branches (1%) and directly oriented to renal hilum. Supernumerary anomalies of the renal veins observed less than renal arteries number anomalies. In this study during the routine educational dissections, it is observed double renal arteries and veins on a-54-year-old female cadaver. It measured the distance between the renal veins and their opening to inferior vena cava as 1.90 cm. Arteries originated from abdominal aorta and their origins' distances to coeliac trunk were 1.80 cm and 2.75 cm respectively. In addition, it is detected that right ovarian vein drained into lower renal vein instead of the inferior vena cava. This study is presented, considering the clinical significance of the supernumerary vessels of the kidney, besides discussing basis of embryological development by comparing other related literature.

Keywords: Renal artery, renal vein, variation, cadaver

SUMMARY

            Renal arteries originate from the abdominal aorta at the level of the intervertebral disc between the first and the second lumbar vertebrae. Renal veins following leaving the kidney, drain to inferior vena cava. Since its embriological development shows complexity, anatomy of the kidney’s vessels are variational. It has been observed that renal arteries have anomalies related with the number, origin, courses and branches at the clinical and cadaveric studies. It has been reported variations of the renal artery which directly originated from abdominal aorta as more than one branch; two (10-12%) and three branches (1%) and directly oriented to renal hilum. Supernumerary anomalies of the renal veins observed less than renal arteries number anomalies.

In this study during the routine educational dissections, it is observed double renal arteries and veins on a-54-year-old female cadaver. It measured the distance between the renal veins and their opening to inferior vena cava as 1.90 cm. Arteries originated from abdominal aorta and their origins’ distances to coeliac trunk were 1.80 cm and 2.75 cm respectively. In addition, it is detected that right ovarian vein drained into lower renal vein instead of the inferior vena cava. This study is presented, considering the clinical significance of the supernumerary vessels of the kidney, besides discussing basis of embriological development by comparing other related literature.

Key Words: Renal artery, renal vein, variation, cadaver.