and adenomyoma formation in 3, and adenomatoid proliferation in 2. In group C (control), mucosal epithelium presented only slight hyperplasia with chronic inflammatory cells.

• A、B组胆囊粘膜上皮增生明显,3只形成腺肌瘤,2只呈腺瘤样增生,大部分有粘液化生。 C组仅有上皮轻度增生及慢性炎细胞浸润。