ANATOMICAL VARIATIONS IN ARTERIAL PATTERN OF LOWER SEGMENTAL ARTERY AND ITS RELATION WITH COLLECTING SYSTEM

Aim of our study to observe the arterial pattern of lower segmental artery and its relation with collecting system. 50 fresh human Kidneys were studied by corrosion cast method. Moulding granules of butyl butyrate dissolved in acetone for 24 hours and prepared 20% homogenous solution. Solution was injected into renal vessel and ureter. Injected Kidney was corroded in concentrated potassium hydroxide solution and cleaned with running water. We observed three dimensional endocasts of collecting system and renal vessel. We found 5 types of variation in arterial pattern of lower segmental artery namely LSAT1, LSAT2, LSAT3, LSAT4, LSAT5 and they were seen in 70%, 4%, 2%, 4% and 20% Kidneys respectively. We also found two types of variation in relation between lower segmental artery and collecting system namely LSAG1 and LSAG2. LSAG1 seen in 80% Kidneys and LSAG2 in 20% Kidneys.The finding of our study is helpful for urosurgeon in intrarenal operations, endourological stone removal, renal trauma management and to avoid post operative complications.