“…Unsuspected precancerous lesions or carcinomas of the gallbladder have been diagnosed during or after cholecystectomy [2,3,13,14,17], AM, adenomyomatosis; F, female; GBP, gallbladder polyp (polypoid lesion); GS, gallstone; LC, laparoscopic cholecystectomy; M, male; pap, papillary adenocarcinoma; pT1a, the tumor invades the lamina propria; pT1b, the tumor invades the muscle layer; well, well-differentiated adenocarcinoma. F, female; GBP, gallbladder polyp (polypoid lesion); GS, gallstone; Hx, resection of the gallbladder bed with lymph node dissection following LC; LC, laparoscopic cholecystectomy; M, male; pap, papillary adenocarcinoma; pN0, no regional lymph node metastasis; pN2, metastases in peripancreatic (head only), periduodenal, periportal, coeliac and/or superior mesenteric lymph nodes; pNx, regional lymph nodes cannot be assessed; por, poorly differentiated adenocarcinoma; pT2, the tumor invades perimuscular connective tissue without extension beyond the serosa or into the liver; pT3, the tumor perforates the serosa or directly invades one adjacent organ (or both); well, well-differentiated adenocarcinoma.…”