科研之友
微信
新浪微博
Facebook
分享链接
摘要
It is of paramount importance for surgeons to have a thorough knowledge of the normal anatomy of the extrahepatic bile ducts and its variations due to the high frequency with which they perform in this anatomic site. The cystohepatic triangle, or Calot%26apos;s Triangle, is bound by the cystic duct, common hepatic duct, and the hepatic border; therefore, its surface area depends on the conformation of these ducts and is closely linked to surgical procedures performed in this region. It has been reported that the length and the position of these ducts may be related to the formation of bile duct stones, Mirizzi%26apos;s syndrome, and bile duct cancer. Thus, the present work aims to analyze the configuration of the extrahepatic biliary tree and its possible variations, as well as measure the components that make up the cystohepatic triangle. For this task 41 samples from fixated human cadavers were analyzed, with 25 consisting of anatomic parts (liver and biliary tree) and 16 in situ samples. The extrahepatic biliary trees were dissected in order to measure the length of the common hepatic and cystic ducts with a digital caliper, and all anatomic variations were registered. The length of the common hepatic duct varied between 4.18 mm and 50.64 mm, with an average of 21.76 ㊣ 9.51 mm. The length of the cystic duct varied between 7.28 and 38.88 mm, with an average of 19.11 ㊣ 6.77 mm. Anatomic variations were found in 3 samples (7.3%): in one of them the cystic duct connected to the left hepatic duct; in another, the cystic duct connected to the right hepatic duct; in the third, there was a triple confluence of hepatic ducts (two right ducts and one left duct). The results are a contribution to the clinical and surgical anatomy of this region. El conocimiento de la anatom赤a normal de las v赤as biliares extrahep芍ticas y sus variaciones es fundamental para los cirujanos digestivos debido a la frecuencia con que se act迆a en esa regi車n. El tr赤gono hepato-c赤stico o de Calot es delimitado por el ducto c赤stico, ducto hep芍tico com迆n y el margen del h赤gado. De este modo, su 芍rea depende de la conformaci車n de esos ductos y est芍 赤ntimamente relacionada a procedimientos quir迆rgicos efectuados en esa zona. Se ha se alado que la longitud y la disposici車n de esos ductos estar赤an involucradas en la formaci車n de c芍lculos biliares, s赤ndrome de Mirizzi y neoplasias de v赤as biliares. As赤, el presente estudio tuvo como objetivo analizar la configuraci車n de las v赤as biliares extrahep芍ticas y sus posibles variaciones, adem芍s de registrar par芍metros m谷tricos de los componentes del sistema biliar qu
