Obstruction near Hepatic Flexure in Pancreatitis

*Polypi age of 50 the incidence of carcinoma was 2.4%. The incidence of cholelithiasis in the entire series was 86.9%. The incidence of carcinoma in the presence of gallstones was 1.2% of the total series and 2.2% of the series over age 50. The incidence of carcinoma in the absence of gallstones was 2.2% of the total series and 4.3% of the series over age 50. While these percentages are larger than those for carcinoma in the presence of gallstones, there is no significant statistical difference between the incidences with and without stones. Summary Gallbladder carcinoma is not related to the presence of gallstones. The fact that there were fewer polypi than carcinomas offers no support for the concept that gallbladder polypi are premalignant lesions.