Abstract
Background: Pancreatic and peri-ampullary cancers are deadly and require surgery. Some non-cancerous conditions, especially those that do not require surgery, have imaging findings similar to pancreatic and peri-ampullary carcinoma. The proportion of non-cancerous lesions that undergo pancreatic resection for suspected pancreatic or peri-ampullary cancer is scarce in eastern countries, especially when bile duct tumors are common. This study examined the proportion of non-cancerous lesions removed during pancreatic resection for suspected pancreatic or peri-ampullary cancer. Materials and Methods: The retrospective study included January 2013–December 2017. We investigated the medical and pathological data of 148 pancreatic resection patients at Srinagarind Hospital, Khon Kaen University. Results: Nine patients (6.1%) had postoperative pathology diagnoses that did not require surgery. The discordant group was significantly larger among distal pancreatectomy or enucleation patients (15%, 4/27) than pancreaticoduodenectomy patients (4.1%, 5/121). The concordant and discordant groups had similar clinical features for pancreaticoduodenectomy, except for gender (p=0.031). There were no clinical differences between concordant and discordant patients after distal pancreatectomy or enucleation. Conclusion: Pancreatic excision for non-cancerous conditions may be inevitable. Western and Eastern countries have different non-cancerous disorders that mimic pancreatic or peri-ampullary cancer. Western countries had more pancreatic conditions, especially inflammatory ones, but Eastern countries had more ampullary and bile duct conditions in pancreaticoduodenectomy patients and benign cystic lesions in distal pancreatectomy patients.
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