所谓非上皮性肿瘤，一般系指源自间叶组织的各种肿瘤。发生在腹部的非上皮性肿瘤缺乏特异的临床表现，误诊率极高［１］，尤当以急腹症、消化道大出血等表现就诊时，常造成治疗和手术处理的失当，应引起重视。我院１９９０～１９９９年共收治腹部非上皮性肿瘤２８例，其中２２ The so-called non-epithelial neoplasia generally refers to various tumors derived from mesenchymal tissue. The non-epithelial neoplasia in the abdomen lacks specific clinical manifestations, and the rate of misdiagnosis is extremely high [1]. When Edu suffers from symptoms such as acute abdomen and gastrointestinal hemorrhage, it often causes improper treatment and surgical treatment, which should be paid attention to. In our hospital from 1990 to 1999, a total of 28 cases of non-epithelial neoplasia were treated, of which 22