Anatomy of the Intrahepatic Ramification of the Portal Vein in the Right Hemiliver

Autor:	Clésio Mello de Castro, José Roberto Ortale, Cristiano Humberto Naves de Freitas Azevedo
Rok vydání:	2000
Předmět:	medicine.medical_specialty Histology Portal Vein business.industry Ramification (botany) Portal vein Hepatic lobes Anatomy Dissection (medical) medicine.disease Liver Liver circulation Right hemiliver cardiovascular system medicine Humans Radiology business Liver Circulation
Zdroj:	Cells Tissues Organs. 166:378-387
ISSN:	1422-6421 1422-6405
DOI:	10.1159/000016754
Popis:	The ramification of the portal vein in the right hemiliver was studied by anatomic dissection in 36 formalin-fixed human livers. In 28/36 (77.8%) cases, the portal vein bifurcated into a right branch and a left branch and the right branch bifurcated into anterior and posterior segmental branches. The anterior segmental branch terminated in the anterosuperior subsegment (S8) in two types: bifurcated when it divided into anterior P8 and posterior P8 branches towards the respective regions of S8 (24/28 cases) and monopodal when it had a single pedicle (4/28 cases). The maximum anteroinferior subsegmental branch (P5 maximum) originated either from the anterior segmental branch (16/28 cases) or from the anterior P8 branch (12/28 cases). The posterior segmental branch vascularized the posteroinferior (S6) and the posterosuperior (S7) subsegments, and was terminated in three types: fan-shaped (16/28), bifurcated (9/28) and tripodal (3/28). In 4/36 (11.1%) cases the portal vein bifurcated into a right branch and a left branch but the posterior segmental branch was not present. In 4/36 (11.1%) the right branch of the portal vein was not present. These anatomical variations are explained separately and finally all cases are considered as a whole.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd18859b76f39a478a16f4a235e070d3 https://doi.org/10.1159/000016754 Zobrazit plný text záznamu