一、胆囊良性肿瘤的分类有 Edmondson、Christensen、佐藤、山本,白井等多种分类法。较常用的是 Christ-ensen 分类法,即将胆囊良性肿瘤分为真性肿瘤和假性肿瘤,前者如腺瘤,后者如增殖、异位症、息肉等,属增殖性者分腺瘤和腺肌瘤;息肉则分为炎性及胆固醇性。白井等将胆囊隆起性病变分为肿瘤和非肿瘤型,其中腺瘤和增生,可根据有无化生而分为固有上皮型和化生上皮型。二、胆襄息肉1.胆固醇性胆囊息肉粘膜固有层间质 First, the classification of benign gallbladder tumors includes Edmondson, Christensen, Sato, Yamamoto, Shirai, and other classification methods. The more commonly used Christ-ensen classification method is to divide gallbladder benign tumor into true tumor and pseudotumor. The former are adenomas, and the latter are proliferative, atopic, polyps, etc., and are proliferative. Tumor; polyps are divided into inflammatory and cholesterol. Shirai et al. classified gallbladder prominence into tumors and non-neoplastic types, in which adenomas and hyperplasia were classified into intrinsic epithelial and metaplastic epithelial types according to presence or absence of metaplasia. Second, biliary polyposis 1. Gallbladder polyps mucosal lamina propria interstitial