胃肠胰神经内分泌肿瘤的CT表现与病理分级的相关性分析

Correlations between CT Features and Pathological Classifications of Gastroenteropancreatic Neuroendocrine Tumors

目的探讨胃肠胰神经内分泌肿瘤(GEP-NET)的CT影像特征与病理分级的相关性。方法22例经病理诊断为GEP-NET的患者纳入研究,回顾性分析GEP-NET的CT影像特征(肿瘤大小、形态、生长方式、边界、坏死囊变、周围侵犯、强化方式、强化程度、淋巴结转移、远处转移)与GEP-NET病理分级的相关性。结果肿瘤大小、形态、生长方式、肿瘤边界、淋巴结转移、远处转移与病理分级有显著相关性(P<0.05)。肿瘤的坏死囊变、周围侵犯、强化方式、强化程度与病理分级无显著相关性(P>0.05)。结论不同病理分级GEP-NET的CT特征有一定差异,CT检查有助于GEP-NET的术前良恶性诊断。

Objective To analyze the correlations between the CT features and pathological classifications of gastroenteropancreatic neuroendocrine tumors(GEP-NET).Methods 22 cases pathologically proved GEP-NET were studied retrospectively.The correlation between the CT features(tumor size,shape,growth pattern,boundaries,necrosis,invading of the surrounding organs,enhancement patterns,degree of enhancement,lymph node metastasis and distant metastasis)and pathological classifications was analyzed.Results Some CT features were proved to be associated with pathological classifications including the tumor size,shape,growth pattern,boundaries,lymph node metastasis and distant metastasis(P<0.05).However,there was no correlation between other CT features(necrosis,invading of the surrounding organs,enhancement patterns and degree of enhancement)and pathological classifications(P>0.05).Conclusion The CT features of GEP-NET with different pathological grades were not the same.Contrast-enhanced CT can be useful in the classification of GEP-NET before operation.