Percutaneous transhepatic cholangiobiopsy
- PMID: 30804614
- PMCID: PMC6383542
- DOI: 10.1590/0100-3984.2017.0228
Percutaneous transhepatic cholangiobiopsy
Abstract
Most tumors of the biliary tract are too small to have specific imaging characteristics or for percutaneous puncture to provide sufficient material for diagnosis. Percutaneous transhepatic biliary drainage, in addition to being a well-established technique in the treatment of obstructive jaundice, provides adequate access for sampling obstructive lesions. In cases of biliary lesions, percutaneous transhepatic biopsy of the biliary tract has proven to be a useful diagnostic technique, with a reported accuracy of over 90% at some referral centers.
Os tumores das vias biliares são, em sua maioria, muito pequenos para apresentarem características específicas por imagem ou para permitir punção percutânea com material suficiente para o diagnóstico. A drenagem biliar trans-hepática percutânea, além de ser uma técnica bem estabelecida no tratamento de icterícia obstrutiva, fornece um acesso adequado para amostragem de lesões obstrutivas. Nos casos de lesões biliares, a colangiobiópsia transbiliar percutânea demonstra ser uma boa técnica diagnóstica, com acurácia ultrapassando 90% em alguns centros de referência.
Keywords: Bile duct neoplasms; Biliary tract; Biopsy, needle/methods; Biopsy/methods; Cholangiography.
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