胃肠道神经内分泌肿瘤的内镜误诊体会*

目的探讨胃肠神经内分泌肿瘤(GI-NETs)内镜诊治特点,减少误诊。方法收集2012年1月-2014年11月该院内镜诊断的84例神经内分泌肿瘤(NET),回顾性分析其白光内镜、超声内镜(EUS)、组织病理学及治疗后情况等特点,总结其中误诊病例特点。结果经内镜诊断NET 84例,最终经病理证实为NET 72例,12例内镜误诊为NET,误诊率达14.3%,12例分别为慢性炎症5例,异位胰腺2例,布氏腺增生1例,大肠增生性息肉1例,大肠静脉型血管瘤1例,大肠平滑肌瘤1例,转移性鳞癌1例。8例行EUS检查,均提示病灶来源黏膜下层,6例为低回声,1例偏高回声(布氏腺增生),1例混合回声(静脉型血管瘤)。结论 GI-NETs在内镜下有一定的特征性,但有部分病例表现可类似,经过更为细致的观察和必要的活检可增加诊断的准确率。

Experience of endoscopic diagnosis and treatment for gastrointestinal neuroendocriue tumor*

Objective?To study the characteristics of endoscopic diagnosis and treatment for gastrointestinal neuroendocriue tumor (GI-NETs).?Methods?We retrospectively collected the clinical data of 84 patients with endoscopic confirmed GI-NETs from January 2012 to November 2014, including white light, endoscopic ultrasonography, histopathology and post-treatment condition.?Results?Endoscopic diagnosis for NET were 84 cases, but finally confirmed by pathology were 72 cases, the misdiagnosis rate was 14.3%. Of the 12 misdiagnosed cases, 5 cases were chronic inflammation, ectopic pancreas in 2 cases, and 5 cases of hyperplasia of Brunner''s glands, colorectal hyperplastic polyps, colorectal venous hemangioma, colorectal leiomyoma, metastatic squamous carcinoma respectively. Of 8 cases with EUS, all lesions derived from the submucosal layer, and 6 cases of low echo, and 2 cases of high echo (Brunner''s glands) and mixed echo (venous hemangioma) respectively.?Conclusions?GI-NETs, which possess certain characteristics under endoscopy, may be similar with other digestive diseases, while it can increase the diagnosis accuracy by more careful observation and necessary biopsy.