超声诊断胰腺神经内分泌肿瘤  

Ultrasound in diagnosis of neuroendocrine tumors of pancreas

作　　者：洪运虎[1] 余乐[1] 唐建华[1] 詹林[1] 

机构地区：[1]桂林医学院附属医院超声诊断科,广西桂林541199

出　　处：《中国医学影像技术》2014年第1期91-94,共4页Chinese Journal of Medical Imaging Technology

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l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。Objective To investigate conventional ultrasound and CEUS manifestations of neuroendocrine tumor of pan- creas （NETP）. Methods Imaging features of histopathologically proved NETP in 13 patients were retrospectively ana- lyzed. Results Conventional ultrasound was performed in all 13 patients, while CEUS in 7 patients. Pancreatic neuroendo- crine tumor （NET） was found in 8 cases, while pancreatic neuroendocrine carcinoma （NEC） was found in 5 cases, all pres- ent 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 1.6 cm to 6.0 cm, 9 were solid and 4 were solid-cystic lesions. Abundant col- or flow signals were detected in all lesions with CDFI. Among 7 cases underwent CEUS, 3 lesions were NETs and 4 were NECs. Compared with normal pancreas tissue, early or simultaneously enhancement, hyper- or iso-enhancement at peak and fast-washout were observed in theses 7 lesions. 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.

关 键 词：胰腺肿瘤 神经内分泌肿瘤 造影剂 超声检查 

分 类 号：R735.9[医药卫生—肿瘤] R445.1[医药卫生—临床医学]