Analysis of Incidental Gallbladder Cancer in Cholecystectomies
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Objective: To study incidental gallbladder cancer (IGBC) incidence in patients who underwent cholecystectomy. Methods: The records of patients who underwent cholecystectomy between 2004-2019 were retrospectively reviewed. The demographic information, preoperative radiological findings of the patients diagnosed with gallbladder cancer (GBC), as a result of routine histopathological examination and operation records, were reviewed and findings were recorded. The preoperative radiological records of the patients with GBC and, if any, findings of GBC suspected during surgery were recorded. Results: Between 2004-2019, a total of 6314 patients underwent cholecystectomy. Of the patients, 5404 (85.59%) were female and 910 (14.41%) were male. The median age was 47 years (min:19, max:94) and the mean age was 47.28 +/- 14.60 years. Nine out of 6314 patients (0.14%) were diagnosed with GBC by postoperative histopathological examination. All patients with GBC were female and their mean age was 64.33 +/- 11.08 years. Two out of nine GBC cases were prediagnosed with GBC in preoperative radiological findings; the remaining seven (0.11%) had IGBC without any preoperative findings. Conclusion: Asian populations are reported to have a higher incidence of GBC. Turkey is located in the transition zone between Asia and Europe. However, the GBC rates in our study remain far below the rates reported in Asian publications. We believe that our results may be affected by the predominantly Mediterranean-type diet and the relatively higher socioeconomic level of the region where we conducted our study. Consequently, we recommend routine histopathological examination after cholecystectomies in regions with a high incidence of GBC.
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