Tumors of the gallbladder are rare. Adenomas of the gallbladder is mostly occur as papillary or tubular. Tubular adenomas of the gallbladder occur in middleaged and old people, and it is extremely rare in children. We present 61 year old woman in whom during an ultrasound examination of the abdomen for pain that lasts a long time discovered a chronic inflammation of the gallbladder and slightly polypoid tumor of the gallbladder. Cholecystectomy was performed based on ultrasonographic findings of polyps in the gallbladder. Macroscopic and microscopic established that it is a tubular adenoma type with intestinal epithelial dysplasia, which clearly indicates that it is adenoma with reliable signs of precancer Finding intraoperative cholangiography was normal, and the postoperative course was uneventful.