“…The remaining 28 patients had either direct regional invasion (2 1) or hematogenous distant metastases (7). At diagnosis, tumor involvement was detected in the liver (13), periductal lymph nodes (12), gallbladder (7), pancreas (3), colon (2), duodenum (I), stomach (l), and bone marrow (1). The anatomical location of the tumor in the biliary system was limited to hepatic, common hepatic, or cystic duct in 20 patients, and located in the common bile duct in 27 patients.…”