阑尾粘液囊腺瘤(Mucinous Cystadenoma of the appendix)较罕见,术前诊断困难,常在术中或术后方确诊。结合我院近5年中收治的4例讨论如下。临床资料例1女,64岁,腹胀伴右下腹痛一个月,加重二日。查体:体温38℃,右下腹饱满伴压痛、反跳痛及肌紧张。以急性阑尾炎阑尾穿孔急诊手术。术中见回盲部充血水肿,阑尾坏疽,远端 Mucinous cystadenoma of the appendix is ​​rare and difficult to diagnose preoperatively. It is often diagnosed intraoperatively or postoperatively. Combined with our hospital in the past 5 years treated 4 cases are discussed below. Clinical data example 1 female, 64 years old, abdominal distension with right lower abdominal pain for one month, increased two days. Physical examination: body temperature 38 ℃, right lower quadrant with tenderness, rebound tenderness and muscle tension. Acute appendicitis appendix perforated emergency surgery. Intraoperative see ileocecal congestion and edema, appendiceal gangrene, distal