High-quality care can be achieved in regional hospitals through collaboration. Centralization should no longer be regarded as a threat by general hospitals but as a chance to improve outcomes in pancreatic cancer.

Methods: We retrospectively reviewed the basis on which the diagnosis of cancer was established between 2004 and 2015 in the IKZ region. We identified all patients of whom the diagnosis was establish prior to or during surgery and those who were diagnosed post-operative. With that information we expected to discover that the macroscopic examination in the operating room, by the surgeon, suffices in a great number of cases. Results: Histological gallbladder examination occurred in 31902 patients and malignancy was diagnosed in 205 cases, 96 were found inoperable due to metastatic disease. In 34, the diagnosis or high suspicion was already made before the operation. In another 30 we found description of a tumour in the operation report. In just 38 there was no mention of a suspicious gallbladder appearance. Upon macroscopic examination in the pathology laboratories, abnormalities were seen in 23 of the 38. In the remaining 15, it was documented that the specimens were taken at random. Of these 15 cases, 8 were either acute cholecystitis, conversion or open procedure which would problably vanguard additional histopathologic inspection. Resulting in unexpected gallbladder malignancy in just 7 cases. Of these cases only 1 was referred for additional surgery. Conclusions: We presented one of the largest single study cohort of gallbladder cancer and histopathologic gallbladder specimens. The major part of the invasive gallbladder cancers showed macroscopic abnormalities perioperative. Therefore Sel-HP seems a feasible policy and would reduce costs and pathological workload.

Background: Pancreatic cystic neoplasms include serous tumors, pseudopapillary neoplasms mucinous tumors, and IPMN. Sendai criteria, last update Fukuoka criteria, have increased attention on IPMN. Methods: We retrospectively reviewed patients with

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Background: The 8th edition AJCC staging system for pancreatic cancer incorporated several significant changes. We sought to evaluate this staging system and assess its strengths and weaknesses relative to the 7th edition system. Methods: Using the Surveillance, Epidemiology and End Results (SEER) database (2004-2013), 8,960 patients undergoing surgical resection for non-metastatic pancreatic adenocarcinoma were identified. Overall survival was estimated using the Kaplan-Meier method and compared using log-rank tests. Concordance indices were calculated to evaluate the discriminatory power of both staging systems. Cox proportional hazards model were used to determine the impact of T and N classification on overall survival. Results: The concordance index for AJCC 8th staging system (0.60,CI95% 0.59-0.61) was comparable to that for the 7th AJCC staging system (0.59,CI95% 0.58-0.60). Stratified analyses for each N classification system demonstrated diminishing impact of T classification on overall survival with increasing nodal involvement. The corresponding concordance index for N0, N1 and N2 classifications were 0.58 (CI95%:0.55-0.60), 0.53 (CI95%:0.51-0.55), and 0.53 (CI95%:0.50-0.56) respectively. Conclusion: This is the first large-scale validation of the AJCC 8th edition staging system for pancreatic cancer. The revised system provides similar discrimination as compared to the 7th edition system. However, the 8th edition system allows finer stratification of patients with resected tumors according to extent of nodal involvement.