Preoperative Biopsy and Intra Hepatic Clanga Carsonoma

Prebiopsy is not necessary if you have radiographic and clinical evidence that suggests malignancy. You want to look for lymphno metacsis past the port hepitus as well as distant mets, which would contraindicate resection. For extra hepatic glandia carsonoma, the basic principle is still complete resection with negative margins. If it's a distal lesion, you'll likely need to do a whipple.