STUDY ON VARIATIONS OF ANTERIOR INFERIOR SEGMENTAL BRANCH OF RENAL ARTERY

Background: The kidneys are paired solid organs that lie in the retro peritoneum along the borders of psoas muscle. Each kidney is positioned obliquely and awareness of the relationship of the kidneys to the surrounding organs is paramount. Each kidney is supplied by a renal artery, which is a branch of the abdominal aorta, the branching pattern of renal artery shows very much variations , the knowledge of individual segmental artery variation are very helpful for clinical practices of renal surgeries. Materials and Methods: Fifty pairs of kidneys with intact abdominal aorta and renal artery were collected from the dead bodies obtained from the mortuary of Forensic department, JSS Medical College and Mysore Medical College and studied in JSS Medical College. For study of segmental variation Corrosion cast technique method was used. Results: In present study type I anterior inferior segmental artery were found in 47%, type II in 16%, type III in 24%, type IV 10%, type V in 0% o and type VI 1% of cases. Conclusion: The variation of the anterior inferior segmental artery has not been given importance in previous works and they have been typed (6 types) in the present work. The knowledge of anterior inferior segmental artery variations are helpful in renal surgeries in particular with anterior inferior segmental artery distribution area.