【摘要】 目的探讨胰腺神经内分泌肿瘤的超声及CEUS表现。方法回顾性分析经手术病理证实的13例胰腺神经内分泌肿瘤的常规超声及CEUS表现。结果 13例均接受常规超声,7例接受CEUS检查。13例中,神经内分泌瘤8例,神经内分泌癌5例,均呈低回声,肿瘤边界较清晰,CDFI见肿瘤内部丰富线状彩色血流。肿瘤位于胰头5例,胰体5例,胰尾3例;直径1.6~6.0cm;9例为实性,4例为囊实性。7例接受CEUS的患者中,3例为神经内分泌瘤,4例为神经内分泌癌,与胰腺实质相比较均表现为早期或同步增强,达峰时呈较胰腺实质高或等增强,减退早于胰腺实质,呈低增强。结论胰腺神经内分泌肿瘤超声表现为边界清晰低回声占位、伴有丰富血流,CEUS表现为早期或同步增强,达峰时呈富血供表现,有助于鉴别诊断。更多还原

【Abstract】 Objective To investigate conventional ultrasound and CEUS manifestations of neuroendocrine tumor of pancreas(NETP).Methods Imaging features of histopathologically proved NETP in 13patients were retrospectively analyzed.Results Conventional ultrasound was performed in all 13patients,while CEUS in 7patients.Pancreatic neuroendocrine tumor(NET)was found in 8cases,while pancreatic neuroendocrine carcinoma(NEC)was found in 5cases,all present as well-defined hypoechoic lesions.The tumors located in pancreatic head(n=5),pancreatic body(n=5)or tail(n= 3),respectively,with diameters ranged from 1.6cm to 6.0cm,9were solid and 4were solid-cystic lesions.Abundant color flow signals were detected in all lesions with CDFI.Among 7cases underwent CEUS,3lesions were NETs and 4were NECs.Compared with normal pancreas tissue,early or simultaneously enhancement,hyper-or iso-enhancement at peak and fast-washout were observed in theses 7lesions.Conclusion NETP manifest as well-defined hypoechoic lesions with rich color flow signals in conventional ultrasound,early or simultaneous enhancement and rich-blood-supply at peak on CEUS,which may be helpful to differential diagnosis.更多还原