International Collaboration on Cancer Reporting

The distinction between adenocarcinoma arising in the pancreatic head, ampulla, distal bile duct and duodenum may at times be difficult. However, because the pTN-staging of these tumours differs, and patient treatment and prognosis may be different, correct identification of the cancer origin is important and primarily based on the location of the centre of the tumour mass.1-3 While the ... ................
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