磁共振成像和磁共振胰胆管造影对胰腺导管内乳头状黏液性肿瘤的诊断价值  

The value of diagnosis of intraductal papillary mucinous neoplasm of the pancreas by using MRI and MRCP

作　　者：邓利猛[1] 廖伟华[2] 郑兴友[1] 刘慧[2] 

机构地区：[1]湖南省长沙市第四医院放射科,410006 [2]中南大学湘雅医院放射科

出　　处：《实用医学影像杂志》2016年第1期9-11,共3页Journal of Practical Medical Imaging

摘　　要：目的探讨胰腺导管内乳头状黏液性肿瘤(IPMNs)的常规磁共振成像(MRI)和磁共振胰胆管造影(MRCP)表现。方法回顾性分析9例经手术病理证实的IPMNs患者的常规MRI和MRCP表现。结果主胰管型3例,表现为主胰管弥漫性或节段性扩张,呈长T_1低信号长T_2高信号,伴或不伴附壁结节,附壁结节呈轻中度强化;分支胰管型4例,病灶均位于胰头钩突处,表现为单发囊性病变或葡萄状多发囊性病变,呈长T_1低信号长T_2高信号,伴腔内分隔,分隔为短T_2信号;混合型2例,表现主胰管和分支胰管均有不同程度扩张。MRCP均可清晰显示扩张的管道及其交通。结论常规MRI联合MRCP对诊断胰腺IPMNs具有较高临床价值。Objective To investigate the diagnostic value of routine magnetic resonance imaging and MRCP for intraductal papillary mucinous tumor of pancreas（IPMNs）. Methods Retrospectively analyzed the clinical data of 9 patients with IPMNs proved by surgery and pathology including routing magnetic resonance imaging and MRCP. Results The study demonstrated that there were 3 cases of main duct type,MRI showed that the major performance were diffuse expansion of main pancreatic duct or segmental expansion,presented long T_1 low-signal,and long T_2 highsignals,with or without intramural nodule which had mild or moderate enhancement. Four cases were branch duct type,located in uncinate process and head of pancreas. MRI showed multiple or single cystic lesion of clusters,pre-sented long T_1 low-signal,and long T_2 high-signals with short T_2 low-signal septation. Two cases of mixed type,both the main pancreatic ducts and branch ducts have different levels of dilation. MRCP demonstrated clearly that the main pancreatic duct communicate with cystic tumor. Conclusion It may be effective to combine routine magnetic resonance imaging and MRCP in the diagnosis of IPMNs.

关 键 词：胰腺 乳头状瘤 管内 磁共振成像 胰胆管造影术 

分 类 号：R735.9[医药卫生—肿瘤]