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Background: The segmental arteries of the kidney supply the organ in such a way that, each renal pole receives its own artery while, the anterior portion between the poles is supplied by an upper and lower segmental vessel. These two arteries also include in their territory the lateral edge of the kidney and adjacent to the strip of parenchyma on the dorsal or posterior aspect of the organ. The knowledge of inferior segmental branch of renal artery is very important for surgeries in its distribution area in kidney. Materials and Methods: 100 kidneys (Fifty pairs) intact with abdominal aorta were collected from department of Forensic medicine, JSS Medical College and Mysore Medical College. For study of segmental variation Corrosion cast technique method was used. The variations of inferior segmental branch of renal artery were observed and recorded. Results: In present study type I inferior segmental branch of renal artery were found in-59% cases, type II in-6% cases, type III in-28% cases, type IV in-2% cases. Conclusion: The inferior segmental artery from the anterior division of the renal artery is the commonest event-arising in 59%. This is Type I, the normal type. It arises from the renal artery (28%) or from the posterior division (6%) or from the aorta (2%). The knowledge of inferior segmental branch of renal artery helpful in kidney transplantation and renal surgery because these type of surgeries success mainly depends on arterial ligations.

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.

Background: Kidney transplantation is the treatment of choice for the vast majority of patients with end stage renal disease. Many of the current challenges with the donor grafts are the results of anatomic variants, such as multiple renal arteries, multiple. The previous studies have shown that use of vessel grafts is associated with a higher incidence of vascular and urologic complications. With this back ground the knowledge of variations in vascular pattern is very helpful for renal transplantation and renal surgeries. Materials and Methods: 100 kidneys (Fifty pairs) intact with abdominal aorta were collected from department of Forensic department, JSS Medical College and Mysore Medical College. For study of segmental variation Corrosion cast technique method was used. The variations of posterior division were observed and recorded. Results: In present study type I posterior division of renal artery were found in-27% cases, type II in-42% cases, type III in-25% cases. Conclusion: In present study we found three types of posterior division of renal artery this knowledge helpful in treatment of renal trauma, renal transplantation, renovascular hypertension, renal artery embolization, vascular reconstruction.

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