胃肠道间质瘤的诊断治疗

胃肠道间质瘤(gastrointestinal stromal tumors,GIST)是消化系最常见的间叶组织源性肿瘤,是一种潜在恶性的肿瘤.其临床表现缺乏特异性,术前诊断上存在较大困难.近几年其发病机制已经逐渐被人们所认识,诊断及治疗水平上也有了很大的提高.原癌基因kit突变是其主要发病机制之一.以CD117为代表的免疫织化学染色在其诊断中作为一个重要的决定性因素.治疗上目前注重于综合治疗,手术完整切除仍然是其首选治疗,包括新辅助治疗及术后辅助治疗在内的分子靶向治疗的出现成为GIST治疗上的一次巨大进步,甲磺酸伊马替尼等选择性酪氨酸激酶抑制剂制剂的出现,给GIST患者的治疗带来了新的希望.

Diagnosis and treatment of gastrointestinal stromal tumors

Gastrointestinal stromal tumors (GIST) are the most common mesenchymal tumors of the gastrointestinal tract with malignant potential. Because of the lack of specific clinical manifestations, an accurate preoperative diagnosis of GIST is very difficult. In recent years, the pathogenesis of GIST has been gradually clarified, and their diagnosis and treatment have been greatly improved. Oncogenic mutation of the KIT receptor tyrosine kinase is found in the majority of patients with GIST. Immunohistochemical de...