Anatomic Variations of Extrahepatic Bile Ducts and Evaluation of the Length of Ducts Composing the Cystohepatic Triangle

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's Triangle, is bound by the cystic duct, c...

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Autores principales:	Cachoeira,Eduardo, Rivas,Antonio, Gabrielli,Carla
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2012
Materias:	Anatomy Cystohepatic triangle Common hepatic duct Cystic duct Cholecystectomy
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100050
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spelling	oai:scielo:S0717-950220120001000502012-06-08Anatomic Variations of Extrahepatic Bile Ducts and Evaluation of the Length of Ducts Composing the Cystohepatic TriangleCachoeira,EduardoRivas,AntonioGabrielli,Carla Anatomy Cystohepatic triangle Common hepatic duct Cystic duct Cholecystectomy 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'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'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.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.30 n.1 20122012-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100050en10.4067/S0717-95022012000100050
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Anatomy Cystohepatic triangle Common hepatic duct Cystic duct Cholecystectomy
spellingShingle	Anatomy Cystohepatic triangle Common hepatic duct Cystic duct Cholecystectomy Cachoeira,Eduardo Rivas,Antonio Gabrielli,Carla Anatomic Variations of Extrahepatic Bile Ducts and Evaluation of the Length of Ducts Composing the Cystohepatic Triangle
description	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'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'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.
author	Cachoeira,Eduardo Rivas,Antonio Gabrielli,Carla
author_facet	Cachoeira,Eduardo Rivas,Antonio Gabrielli,Carla
author_sort	Cachoeira,Eduardo
title	Anatomic Variations of Extrahepatic Bile Ducts and Evaluation of the Length of Ducts Composing the Cystohepatic Triangle
title_short	Anatomic Variations of Extrahepatic Bile Ducts and Evaluation of the Length of Ducts Composing the Cystohepatic Triangle
title_full	Anatomic Variations of Extrahepatic Bile Ducts and Evaluation of the Length of Ducts Composing the Cystohepatic Triangle
title_fullStr	Anatomic Variations of Extrahepatic Bile Ducts and Evaluation of the Length of Ducts Composing the Cystohepatic Triangle
title_full_unstemmed	Anatomic Variations of Extrahepatic Bile Ducts and Evaluation of the Length of Ducts Composing the Cystohepatic Triangle
title_sort	anatomic variations of extrahepatic bile ducts and evaluation of the length of ducts composing the cystohepatic triangle
publisher	Sociedad Chilena de Anatomía
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100050
work_keys_str_mv	AT cachoeiraeduardo anatomicvariationsofextrahepaticbileductsandevaluationofthelengthofductscomposingthecystohepatictriangle AT rivasantonio anatomicvariationsofextrahepaticbileductsandevaluationofthelengthofductscomposingthecystohepatictriangle AT gabriellicarla anatomicvariationsofextrahepaticbileductsandevaluationofthelengthofductscomposingthecystohepatictriangle
_version_	1718444771024830464

Anatomic Variations of Extrahepatic Bile Ducts and Evaluation of the Length of Ducts Composing the Cystohepatic Triangle

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