目的探讨胃肠道间质瘤的临床病理特点及治疗方法。 方法回顾性分析我院2005年7月至2010年7月期间收治的35例患者的临床资料。 结果35例患者病变分别位于胃部18例（51.4%），其中胃体15例（42.9%）、胃窦3例（8.6%）； 回肠16例（45.7%）； 小肠系膜根部1例（2.9%）。 35例均进行手术治疗，其中行胃楔形切除术15例（42.9%），胃大部切除术3例（8.6%），小肠部分切除术16例（45.7%），肠系膜肿块切除加大部分小肠切除术1例（2.9%）。 术后病理报告均为间质瘤； 免疫组织化学染色结果： CD117阳性33例(94.3%)，CD34阳性26例(74.3%)。 35例术后均获随访，随访时间6个月至5年，平均25.6个月。 1例术后10个月死于肿瘤复发，1例术后4个月死于短肠综合征、营养不良，余33例无肿瘤复发。 结论胃肠道间质瘤确诊依赖于病理组织学检查及免疫组化染色，完整切除病灶是最有效的治疗手段。
Objective To analyze the variation of intestinal microflora in patients with colorectal cancer by SYBR GreenⅠreal-time fluorescence quantitative PCR and reveal the role and significance of intestinal microflora in the colorectal cancer-associated molecular pathogenesis. Methods A set of 16S rRNA gene group of species-specific primers for Bifidobacterium spp., Lactobacillus group, Escherichia coli, and ddl gene-targeted species-specific primers for Enterococcus faecalis and feces Enterococcus were designed. Patients with colorectal cancer (colorectal cancer group, n=30) and healthy volunteers (normal control group, n=30) were included and whose feces were collected to extract bacterial genome DNA. SYBR GreenⅠ real-time fluorescence quantitative PCR was used to analyze the five mentioned bacterial amounts. Results Level of Bifidobacterium spp. (4.52±0.49) and Lactobacillus group (5.46±0.12) in colorectal cancer group were significantly lower than those （9.25±0.83 and 7.45±0.37） of normal control group (Plt;0.05), whereas levels of Escherichia coli (5.82±0.47), Enterococcus faecalis (10.6±0.30) and feces Enterococcus (5.74±0.16) in colorectal cancer group were significantly higher than those （4.68±0.32, 4.95±0.24, and 5.03±0.43） of normal control group (Plt;0.05). Conclusions The fecal microflora composition of patients with colorectal cancer is significantly decreased in Bifidobacterium spp. and Lactobacillus group, whereas increased in Escherichia coli, Enterococcus faecalis, and feces Enterococcus. These data underline that the occurrence and progress of colorectal cancer may be related to intestinal microflora.