原发性阑尾粘液腺癌是一种罕见的原发于阑尾的恶性肿瘤。近年来,国外文献虽陆续有些报告,但国内报道不多。由于阑尾粘液腺癌的临床表现与阑尾炎、肠梗阻或肾盂肾炎相似,因此术前多不能作出正确诊断。现将我们20多年来,外检中遇见的两例报告如下: Primary appendiceal mucinous adenocarcinoma is a rare, primary malignancy of the appendix. In recent years, although there have been some reports in foreign literature, there are not many domestic reports. Because the clinical appearance of appendiceal mucinous adenocarcinoma is similar to appendicitis, intestinal obstruction, or pyelonephritis, it cannot be diagnosed correctly before surgery. We have now reported the two cases that we met in the external inspection over the past 20 years as follows: