Intrabiliary polypoid growth of liver metastasis from XXXX with minimal @entity96 .

@entity1 @entity96 @entity5 @entity2225 @entity189 @entity5822 @entity14 @entity694 @entity420
Liver metastases from @entity14 easily invade the Glisson's triad and sometimes have @entity5 growth. This behavior is by no means rare, and causes the cut end of the Glisson's triad to be positive for @entity5 . We report here a 72-year-old Japanese @entity1 with a medical history of ascending @entity694 in whom enhanced computed tomography (CT) showed a low-density mass in the caudate lobe of the liver and dilatation of the peripheral intrahepatic bile duct. He underwent right hemihepatectomy and caudate lobectomy. The resected specimen showed a polypoid @entity5 in the bile duct lumen, with minimal @entity96 ; the @entity5 was similar to @entity189 . Histological findings proved it to be well-differentiated @entity420 . Immunochemically, the @entity5 cells were positive for @entity2225 , but negative for @entity5822 , and we finally diagnosed him with intrabiliary polypoid growth of liver metastasis from @entity694 . For complete surgical resection, it is very important to diagnose @entity5 growth. However, we could not diagnose it preoperatively in spite of the CT detecting an @entity5 , because the CT revealed no extrabiliary @entity96 . We have to pay attention to the fact that CT rarely demonstrates only intrabiliary growth without @entity5 .
