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CS Lymph Nodes
Correct answer: 99
Unknown; No adenopathy on physical exam, no LNs were removed with resection. The tumor is no longer localized -- there is invasion into adjacent adipose tissue, the cystic duct margin is positive, and there is at least one metastatic implant to the peritoneum. There is insufficient information to use the "inaccessible" primary site rule to code regional LNs negative for this Stage IV tumor.