Abstract: 【Abstract】 Objective To investigate the CT findings of gastrointestinal neuroendocrine neoplasm and improve the preoperative diagnosis of the disease. Methods〓Thirty-four patients with pathologically diagnosed with gastrointestinal neuroendocrine neoplasm were retrieved from hospital records between Jan. 2013 and Dec. 2015. For these cases, CT findings, the manifestations, and CT feature based on different histopathological classifications were studied. Results〓Twenty-two of 34 gastric neuroendocrine tumors were men, and 12 cases were women. Eighteen cases occur in the stomach, 2 cases in duodenum, 14 cases in colorectum. For WHO Grade, 6 cases were G1 grade (including 1 case in the stomach, 1 case in duodenum, 4 cases in colorectum), 7 cases were for G2 grade (2 cases in the stomach, 1 case in duodenum, 4 cases in colorectum), 21 cases were for G3 grade (15 cases in the stomach,6 cases in colorectum). Conclusion〓CT appearances of gastrointestinal neuroendocrine neoplasm showed characteristics in different clinical and histologic classification, while the diagnostic and tumor stage of the disease was important.

Key words: Neuroendocrine neoplasm, X-ray computer, Tomography, Gstrointestinal

摘要： 【摘要】〓目的〓探讨胃肠神经内分泌肿瘤的CT表现,提高对胃肠神经内分泌肿瘤的术前诊断。方法〓回顾性分析34例经手术病理证实的胃肠神经内分泌肿瘤的CT表现及不同分级间的CT表现差异。结果〓34例胃肠神经内分泌肿瘤,其中男性22例,女性12例,发生在胃部18例,十二指肠2例,结直肠14例。6例为G1级,其中1例于胃部,1例于十二指肠,4例于结直肠;7例为G2级,其中2例于胃部,1例于十二指肠,4例于结直肠;21例为G3级,15例于胃部,6例于结直肠。结论〓不同临床及病理分型胃肠神经内分泌肿瘤CT表现各有特征,对胃肠神经内分泌肿瘤的诊断和分期具有重要的价值。

关键词: 神经内分泌肿瘤, X线计算机, 体层摄影术, 胃肠