obstructive jaundice adult 2 case report 2 histopathology 2 human 2 middle aged 2 Afferent loop obstruction 1 Article 1 CA 19-9 antigen 1 Klatskin tumor 1 Pancreaticoduodenectomy 1 Percutaneous transhepatic biliary drainage 1 Percutaneous transhepatic biliary drainage (PTBD) 1 Stents 1 abdominal radiography 1 adenocarcinoma 1 afferent loop syndrome 1 antibacterial activity 1 antineoplastic agent 1 article 1 balloon catheterization 1 biliary cannulation 1 biliary tract drainage 1 cancer size 1 cholangiography 1 clinical article 1 computer assisted tomography 1 data analysis 1 differential diagnosis 1 disease exacerbation 1