Background: In previous studies the incidence of extrapancreatic neoplasms (EPN) in patients with a pancreatic intraductal papillary mucinous neoplasm (IPMN) stayed unclear. Therefore this multicenter study was performed.
Methods: 130 patients with IPMN were evaluated in Klinikum Rechts der Isar in Munich, at whom the existence of EPN was checked. These patients were part of a multicenter study with 1340 patients from 4 institutions. It has been differentiated between prevalence and incidence of EPN in IPMN by excluding the previous and synchronous detected EPN for the calculation, resulting in 816 patients. On these subjects, the standardized incidence ratio (SIR) as well as the 5- and 10-year incidence was calculated.
Results: The 5-year incidence of the 130 patients from Munich was 22.9%. In contrast, the multicenter study only showed EPN in 50 of 816 patients. This results in a SIR of 1.48 (95% confidence interval (CI), 0.94-2.22) in men and 1.39 (95% CI, 0.90-2.05) in women. The 5- and 10-year incidence rates were 7.9% and 16.6% in men, and 3.4% and 23.1% in women. The follow-up period had a median time of 46 months.
Conclusion: This to this date biggest and multicenter study showed that IPMN does not have a significantly higher incidence of EPN. Therefore, it’s not required to perform extended diagnosis for the treatment of the patients. Furthermore, the occurrence of most extrapancreatic neoplasms lies within the currently valid prevention check-ups.
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Background: In previous studies the incidence of extrapancreatic neoplasms (EPN) in patients with a pancreatic intraductal papillary mucinous neoplasm (IPMN) stayed unclear. Therefore this multicenter study was performed.
Methods: 130 patients with IPMN were evaluated in Klinikum Rechts der Isar in Munich, at whom the existence of EPN was checked. These patients were part of a multicenter study with 1340 patients from 4 institutions. It has been differentiated between prevalence and incidence o...
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