小胃肠间质瘤的临床病理学特征
Chinese Journal of Clinical and Experimental Pathology（2016）
Abstract
目的 探讨小胃肠间质瘤(small gastrointestinal stromal tumors,sGIST)的临床病理学特征.方法 回顾性分析21例sGIST的临床病理学及免疫表型特征,对比分析非sGIST,并进行随访.结果 21例sGIST中女性7例,男性14例,中位年龄63岁,直径0.5～1.5 cm,主要发生于胃,全部为梭形细胞型,其中9例同时伴有胃肠道恶性肿瘤.与非sGIST相比,sGIST很少出现肿瘤内出血、坏死、黏膜侵犯、溃疡及核分裂,复发风险明显低于非sGIST;免疫组化标记p53、Ki-67及肿瘤内微血管密度(microvascular density,MVD)明显低于非sGIST,差异有统计学意义(P＜0.05).结论 sGIST可与胃肠道恶性肿瘤同时伴发,免疫组化标记p53、Ki-67及MVD均低于非sGIST,其预后较好.
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Key words
gastric neoplasms,gastrointestinal stromal tumours,small gastrointestinal stromal tumours,microvascular density,prognosis
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