Variations in Origin and Branching Pattern of Anterior Division of Internal Iliac Artery: a Cadaveric Study

Introduction: Detailed knowledge of the branching pattern internal iliac artery will be a guidance for ligating and its branches during various pelvic surgeries. Hence, main objective this study was to know artery, based on Adachis Classification along with length diameter arteries. Methods: The descriptive observational cross-sectional conducted at Department Human Anatomy Nepal medical college, examined over period 9 months from June 2021- February 2022 which included 30 arteries right left sides 15 embalmed male human cadavers. Results: In study, (IIA) Type Ia in 19 (63.33%) III 11 (36.66%) cases while type I b, II a, IV V were not observed. total minimum maximum lengths both trunk 1.33 cm 3.42 respectively average standard deviation 2.61cm ± 0.66.The calculated P valve (0.002) showed that differences between IIA statistically significant. obturator 6.37±1.33 2.47cm±0.67 respectively. found originated anterior posterior division accounting as 96.66% 3.33% Conclusions: Pelvic surgeries may lead hemorrhage if patterns are incorrectly interpreted thus endanger patient’s life prostatectomy, hernioplasty. current explain important aspects vascular anatomy only anatomists morphologists, but also radiologists, general surgeons. Key words: artery; inferior gluteal pudendal variations.