ABSTRACT
Background: Knowledge of hepatic arterial vascularization and its variations have a significant relevance for the daily practice of hepato-biliary surgeon as well as radiologists and anatomists. The right hepatic artery normally arises from the hepatic artery proper, the continuation of the common hepatic artery which is a branch of celiac trunk. Sometimes the anatomical arterial variations are also very common in human beings especially in hepatic region. During routine dissections for undergraduate medical students at Department of Anatomy, in a 75 -year-old male cadaver, we found the right accessory hepatic artery arises from the superior mesenteric artery which supplied the right lobe of the liver along with normal right hepatic artery. In addition, a direct branch to the left lobe of the liver was seen arising from common hepatic artery. The arterial anomaly can be enlightened by embryonic development. The knowledge of existence of aberrant hepatic arteries, either accessory or replacing, is important because they may influence surgical and interventional radiological procedures.
ABSTRACT
Background: Obturator artery is one of the medium sized parietal branches of the anterior division of internal iliac artery and it supplies the medial side of the thigh. It is the most variable vessel among the branches of the internal iliac artery. Materials and Methods: The present study was conducted on a total of 45 pelvic halves had been studied. The material consisted of adult subjects between the ages of forty and eighty five, from the dissection hall of department of anatomy of Alluri Sitarama Raju Academy of Medical Sciences, Eluru, and Andhra Pradesh. The findings were observed and recorded. Results: Origin of obturator artery was most frequently a direct branch of the anterior division of the internal iliac artery, in 16 specimens (35.55%). It was arising from the inferior epigastric artery in 12 specimens (26.66%). It arose from the common trunk of inferior gluteal and internal pudendal artery in 6 specimens (13.33%) etc. Conclusion: The variations in obturator artery may lead to surgical complications during pelvic surgeries requiring suturing along the pelvic brim. The anomalies affecting the arterial patterns of the limbs are based on unusual selection of channels from primary capillaries. The most appropriate channel enlarges, whilst the others retract and disappear, thereby establishing the final arterial pattern and resulting in variations in the origin. Prior knowledge of the anatomical variations may be beneficial for vascular surgeons ligating the internal iliac artery or its branches and the radiologists interpreting angiograms of the pelvic region.